The 7 Best Vac-U-Lock Strap-Ons for Secure Strapping

Amanda Nilsen
by Amanda NilsenUpdated:

Today I’m bringing you the very best Vac-U-Lock strap ons of all kinds, from full strap-on sets with multiple attachments to more basic harnesses for you to attach your own Vac-U-Lock toys to. I’ll also share some of my favorite Vac-U-Lock dildos and tips for using your new strap-on!

Test Winner4.8Vac-U-Lock Vibrating Ultraskyn Set rating 4.8
Cheapest4.1Ultra Harness With Plug rating 4.1
Beginner4.6Dual Density Starter Set rating 4.6
Big4.6Dual Density Experienced Set rating 4.6
Double Penetration4.0Black Double Penetrator Vac-U-Lock Attachment rating 4.0
Harness4.5Luxe Strap On Harness rating 4.5
2.8Vac-U-Lock Ultra Harness Realistic Cock rating 2.8
Vac-U-Lock Vibrating Ultraskyn SetUltra Harness With PlugDual Density Starter SetDual Density Experienced SetBlack Double Penetrator Vac-U-Lock AttachmentLuxe Strap On HarnessVac-U-Lock Ultra Harness Realistic Cock
Vac-U-Lock Vibrating Ultraskyn SetUltra Harness With PlugDual Density Starter SetDual Density Experienced SetBlack Double Penetrator Vac-U-Lock AttachmentLuxe Strap On HarnessVac-U-Lock Ultra Harness Realistic Cock
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Pros & Cons
Pros & Cons
Pros & Cons
Pros & Cons
Pros & Cons
Pros & Cons
Pros & Cons
  • Three different sized and shaped dildos
  • Attachable vibrators
  • Available in different colors
  • Realistic dual density UltraSkyn
  • Cleaning kit included
  • Dildos are porous
  • Not waterproof
  • Basic harness
  • Not a lot of size variation between dildos
  • Open crotch, unisex design
  • Easy to use
  • Simple to adjust
  • Open crotch
  • No dildo included
  • Not that sturdy
  • Includes three dildos and two attachments
  • Beginner-friendly
  • Comfortable harness
  • Available in different colors
  • Great value for the money
  • Pretty expensive
  • Dildos are porous
  • Texture might be too much for some
  • Girthy dildos
  • Realistic look and feel
  • Comfortable adjustable harness
  • Comes with suction cup base
  • Not naturally positioned
  • Dildos are porous
  • Not a unisex design
  • Intense pleasure
  • Fulfillment
  • Flexible anal dildo
  • Nice details
  • No harness included
  • Made from PVC
  • Simple and discrete design
  • Compatible with both vac-u-lock and flare-based dildos
  • Comfortable to use
  • Easy to adjust
  • No dildos included
  • Poppers are not the best quality
  • Nice detailed dildo
  • Realistic look and feel
  • Thong style harness
  • Not a sturdy harness
  • Difficult to keep large dildo in place

The process of testing vac-u-lock strap ons

I spent over 20 hours researching the best dildos and writing this review to make sure I found every drop of information needed for you to choose the best Vac-U-Lock strap-on for you!

I looked at everything from quality, design, and ease of use to reading countless user reviews to uncover any flaws or considerations.

As well as giving each Vac-U-Lock strap on my expert Bedible rating, I’ve also included information about what level experience it would be suited to, as well as price ratings.

The process of testing vac-u-lock strap ons
Read more about how we test products.

How to know if a Vac-U-Lock Strap On is for you?

  • You are looking for a new strap-on sex or pegging dildo
  • You are looking for a secure attachment that can withstand vigorous movements
  • You already have some Vac-U-Lock toys and you are looking for a harness
  • You have a penis but but want to explore penis extension or you have erectile dysfunction

Who can use a vac-u-lock?

While many strap-ons are designed to be worn by vulva owners, many Vac-U-Lock strap-on harnesses are unisex, as they either have hollow dildos or a space below the dildo to accommodate a penis. That means that it’s possible to wear it no matter what genitals you have. Just be sure to check the specific model to check it works with your anatomy.

Reviews of the 7 best Vac-U-Lock Strap-On

Test Winner Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set

4.8/5

Overall RatingBedbible Rating

Overall Rating

4.8/5.0

Bedbible Rating:

4.5/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

5.0/5.0

Based on user reviews

90/100
DesignBeginner

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set was rated 90 out of 100, which means it is designed absolutely incredible.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

90/100
Ease of UseEase of Use

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set was rated 90 out of 100, which means it is extremely easy to use and worked very well.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

70/100
QualityQuality

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set was rated 70 out of 100, which means it is very good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Premium

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set was rated 5 out of 5, which means it is in the premium price range.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set

I don’t think it’s possible to find a more comprehensive Strap-on Vac-U-Lock kit that this one! With a whopping 13-pieces, it really does come with everything you could need for all kinds of strap-on play!

Plus, the dildos are made with dual density ULTRASKYN for an extra realistic feel.

The set includes: 1 x 8-inch dildo, 1 x 7-inch dildo, 1 x slimline dildo, 1 x 7 function vibrating plug with remote, 1 x water-based lubricant, 1 x toy cleaner, 1 x Doc Johnson Vac-U-Powder, 1 x ULTRASKYN Refresh Powder, 3 x O Rings, 1 x adjustable harness, 1 x swiveling hands-free base.

I really like that you can use the vibrating base to turn any of the dildos into vibrators!

Pros

  • Three different sized and shaped dildos
  • Attachable vibrators
  • Available in different colors
  • Realistic dual density UltraSkyn
  • Cleaning kit included

Cons

  • Dildos are porous
  • Not waterproof
  • Basic harness
  • Not a lot of size variation between dildos

My verdict

I’m impressed by how well thought out and versatile this kit is! There are so many ways to combine the pieces that I can’t see it ever getting boring! I would say it’s great for the ones who are a bit more experienced due to the sizes of the dildos. Besides that this set is for everyone, no matter if you like realistic dildos, straight dildos, or vibration.

The only big drawbacks for me are that the dildos are made of TPE, which is unfortunately porous, meaning it can’t be fully cleaned, and there’s not a lot of variation between the sizes of the dildos.

Also, it’s the most expensive Vac-U-Lock strap on in the post but I would say it’s justified by just how much you get for the price!

Buy, if you...

  1. Want a Vac-U-Lock with multiple dildos
  2. Enjoy variation
  3. Want remote controlled vibrations
  4. Need a set to use with multiple partners

Don't buy, if you...

  1. Want to combine it with water play
  2. Avoid using porous materials
  3. Are a complete beginner (size)
  4. Already have your own Vac-U-Lock dildos and just want a harness

Cheapest Vac-U-Lock Ultra Harness With Plug

4.1/5

Overall RatingBedbible Rating

Overall Rating

4.1/5.0

Bedbible Rating:

4/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

4.2/5.0

Based on 16 user reviews

75/100
DesignBeginner

Rating: Vac-U-Lock Ultra Harness With Plug was rated 75 out of 100, which means it is designed very well.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

90/100
Ease of UseEase of Use

Rating: Vac-U-Lock Ultra Harness With Plug was rated 90 out of 100, which means it is extremely easy to use and worked very well.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

75/100
QualityQuality

Rating: Vac-U-Lock Ultra Harness With Plug was rated 75 out of 100, which means it is very good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Cheap

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Vac-U-Lock Ultra Harness With Plug was rated 1 out of 5, which means it is affordable compared to other Vac-U-Lock Strap-On.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Vac-U-Lock Ultra Harness With Plug

This is one of the cheapest Vac-U-Lock strap ons you can find on the market.  It has a simple, easy to use design that’s beginner-friendly. It doesn’t have a lot of straps and it’s got one adjustable buckle for the waist strap.

I love that it’s designed with an open crotch, which makes it unisex and allows you to stimulate the wearer while wearing the harness!

I will point out that this is just the harness and Vac-U-Lock adaptor plug and it doesn’t come with a dildo, so keep that in mind when ordering.

 

Pros

  • Open crotch, unisex design
  • Easy to use
  • Simple to adjust
  • Open crotch

Cons

  • No dildo included
  • Not that sturdy

My verdict

I would say that that this is a good option for a beginner wanting to try out strap-on sex or anyone shopping for a cheap strap-on dildo harness, but the low price is reflected in the overall quality.

Compared to the other options in the review, this is the most basic. While this harness will be fine for occasional use, it isn’t the most sturdy, so I wouldn’t recommend it if you want to use it regularly. I would also look for a more stable Vac-U-Lock harness if you plan on using very large or weighty dildos.

Buy, if you...

  1. Want to try a strap on without spending a lot of money
  2. Are going to use small-sized dildos
  3. Have a penis (harness with a lot of space)
  4. Already have a Vac-U-Lock Dildo

Don't buy, if you...

  1. Are looking for a sturdy harness
  2. Want a high-quality Vac-U-Lock strap on
  3. Don't want to purchase a dildo separately

Beginner Vac-U-Lock Dual Density Dildo & Plug Starter Set

4.5/5

Overall RatingBedbible Rating

Overall Rating

4.5/5.0

Bedbible Rating:

4.5/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

4.6/5.0

Based on user reviews

80/100
DesignBeginner

Rating: Vac-U-Lock Dual Density Dildo & Plug Starter Set was rated 80 out of 100, which means it is designed very well.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

80/100
Ease of UseEase of Use

Rating: Vac-U-Lock Dual Density Dildo & Plug Starter Set was rated 80 out of 100, which means it is very easy to figure out and use.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

70/100
QualityQuality

Rating: Vac-U-Lock Dual Density Dildo & Plug Starter Set was rated 70 out of 100, which means it is very good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Pricey

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Vac-U-Lock Dual Density Dildo & Plug Starter Set was rated 4 out of 5, which means it is in the premium price range.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Vac-U-Lock Dual Density Dildo & Plug Starter Set

Next up, I’ve got the best Vac-U-Lock set for beginners. I love that this kit comes with everything you need to get started, including a choice of three different dildos in different sizes, starting at just 5.5 inches long and working up to 7 inches.

The dual density ULTRASKYN dildos also have different textures, one is smooth with a realistic phallic-looking design, the other two have ridged surfaces that will stimulate during thrust movements, and one of them even has a realistic pair of balls too.

I’m also impressed that you get two different Vac-U-Lock bases — one to use in the harness and a suction cup one that allows you to enjoy any of the dildos hands-free. Plus, you even get some water-based lubricant, natural toy cleaner, and a renewing powder to make maintaining your set even easier!

Pros

  • Includes three dildos and two attachments
  • Beginner-friendly
  • Comfortable harness
  • Available in different colors
  • Great value for the money
  • Made from ultraskyn material

Cons

  • Pretty expensive
  • Dildos are porous
  • Texture might be too much for some

My verdict

In terms of size and variety, I think this is a great Vac-U-Lock starter strap-on kit. There’s a great selection of dildos and a comfortable, adjustable harness that can be used with any Vac-U-Lock dildos.

With ultraskyn material, a material that makes the dildo have a pliable exterior with a firm inner core these dildos feel very realistic. However, I’m disappointed that the material is porous, so it can’t be fully cleaned.

It is one of the more expensive options in this review, but it is also one of the most comprehensive kits as well! You even get cleaning supplies!

 

Buy, if you...

  1. Want a beginner-friendly Vac-U-Lock set
  2. Enjoy ridged dildos
  3. Want life-like feeling dildos
  4. Enjoy solo hands-free masturbation
  5. Need a complete set with multiple dildos

Don't buy, if you...

  1. Are looking for vibrating vac u lock strap on
  2. Are looking for girthy dildos
  3. Don't enjoy intense textures

Big Doc Johnson Vac-U-Lock Dual Density Experienced Set

4.6/5

Overall RatingBedbible Rating

Overall Rating

4.6/5.0

Bedbible Rating:

4.5/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

4.7/5.0

Based on user reviews

90/100
DesignBeginner

Rating: Doc Johnson Vac-U-Lock Dual Density Experienced Set was rated 90 out of 100, which means it is designed absolutely incredible.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

80/100
Ease of UseEase of Use

Rating: Doc Johnson Vac-U-Lock Dual Density Experienced Set was rated 80 out of 100, which means it is very easy to figure out and use.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

70/100
QualityQuality

Rating: Doc Johnson Vac-U-Lock Dual Density Experienced Set was rated 70 out of 100, which means it is very good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Pricey

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Doc Johnson Vac-U-Lock Dual Density Experienced Set was rated 4 out of 5, which means it is in the premium price range.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Doc Johnson Vac-U-Lock Dual Density Experienced Set

Looking for something big, girthy, and fleshy? I’ve got just the thing with the Doc Johnson Vac-U-Lock Experienced set! As well as a comfortable, adjustable harness, this set includes three large dildos, a strap-on Vac-U-Lock attachment, suction cup attachment, three different O-rings, and some cleaning supplies!

With the biggest dildo measuring 10 inches long and 2 inches wide, I think this will satisfy anyone craving a satisfying stretch! Plus, they are made of dual density ULTRASKYN for an extra lifelike look and feel!

 

Pros

  • Girthy dildos
  • Realistic look and feel
  • Comfortable adjustable harness
  • Comes with suction cup base

Cons

  • Not naturally positioned
  • Dildos are porous
  • Not a unisex design

My verdict

This is definitely not a vac u lock strap-on for the beginner. This set has the largest dildos of all the Vac-U-Lock strap ons in this review, so I would only recommend this set for those who already have some experience with larger insertable toys.

The harness is comfortable and the back straps are wide for minimum chafing and maximum comfort. The straps are easy to adjust even when wearing the harness thanks to the wide back strap.

Although I think the dildos are well designed and feel realistic, like the other dildos in this review, they are porous which means they lose marks for quality.

 

Buy, if you...

  1. Are looking for girthy dildos
  2. Want a set with multiple dildos
  3. Are looking for a sturdy harness
  4. Love realistic designs

Don't buy, if you...

  1. Are new to strap-on sex or pegging
  2. Avoid porous materials
  3. Have a penis (no open crotch)

Double Penetration Black Double Penetrator Vac-U-Lock Attachment

4.0/5

Overall RatingBedbible Rating

Overall Rating

4.0/5.0

Bedbible Rating:

4/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

0/5.0

Based on user reviews

88/100
DesignBeginner

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 88 out of 100, which means it is designed absolutely incredible.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

70/100
Ease of UseEase of Use

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 70 out of 100, which means it is very easy to figure out and use.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

90/100
QualityQuality

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 90 out of 100, which means it is one of the absolute top quality toys.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Cheap

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 1 out of 5, which means it is affordable compared to other Vac-U-Lock Strap-On.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Black Double Penetrator Vac-U-Lock Attachment

This is a Vac-U-Lock for all of the DP lovers out there! This Vac-U-Lock strap-on attachment has not one but two thick shafts to fill you up completely! Featuring a larger dildo, designed for vaginal use and a slimmer one for anal use, this two headed beast can be attached to any Vac-U-Lock harness.

This double penetration dildo has raised veins and sculpted heads for a more realistic look and some added sensations with each movement.

Pros

  • Intense pleasure
  • Fulfillment
  • Flexible anal dildo
  • Nice details

Cons

  • No harness included
  • Made from PVC

My verdict

I definitely wouldn’t recommend this for beginners! Even though the size is relatively small, this double penetration Vac-U-Lock strap-on attachment is an intense experience!

I like that you can enjoy DP without needing to control two different dildos, making it easy to incorporate into solo or partner play. However, I don’t like that it’s made out of PVC.

It’s also good to keep in mind, that unlike the other Vac-U-Lock strap-ons in this review, this one doesn’t come with a harness.

Buy, if you...

  1. Enjoy double penetration or want to try
  2. Are an experienced sex toy user
  3. Are aware there is no harness included

Don't buy, if you...

  1. Are a beginner to anal play
  2. Avoid PVC sex toys

Harness Vac-U-Lock Luxe Strap On Harness

4.5/5

Overall RatingBedbible Rating

Overall Rating

4.5/5.0

Bedbible Rating:

4.3/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

4.7/5.0

Based on 68 user reviews

90/100
DesignBeginner

Rating: Vac-U-Lock Luxe Strap On Harness was rated 90 out of 100, which means it is designed absolutely incredible.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

90/100
Ease of UseEase of Use

Rating: Vac-U-Lock Luxe Strap On Harness was rated 90 out of 100, which means it is extremely easy to use and worked very well.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

80/100
QualityQuality

Rating: Vac-U-Lock Luxe Strap On Harness was rated 80 out of 100, which means it is very good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Affordable

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Vac-U-Lock Luxe Strap On Harness was rated 2 out of 5, which means it is moderately priced, neither expensive nor cheap.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Vac-U-Lock Luxe Strap On Harness

I love the versatility of this strap-on harness as you can use it with both flared base and Vac-U-Lock dildos! This is a great Vac-U-Lock strap-on for anyone looking for a more luxurious and sturdy harness in the mid-price range.

It offers great control and the adjustable straps make sure it stays put, it stays in place even when using the heavier dongs.

The open back and crotch also make it perfect to toy with the wearer during use for some extra fun!

Pros

  • Simple and discrete design
  • Compatible with both vac-u-lock and flare-based dildos
  • Comfortable to use
  • Easy to adjust

Cons

  • No dildos included
  • Poppers are not the best quality

My verdict

I’m a big fan of the simplicity of this strap-on harness! If you already have your favorite flared base or Vac-U-Lock dildos and just want a harness to slip them into, I would definitely recommend this one! It’s also a great option if you prefer to use silicone dildos, as most Vac-U-Lock sets come with ULTRASKYN dildos.

This Luxe model is a little more expensive than the Ultra Harness, but I think it’s worth the extra for the overall comfort and stability it offers.

Buy, if you...

  1. Already know you enjoy strap-on sex
  2. Want to use both Vac-U-Lock and flared-based dildos
  3. Enjoy a simple design
  4. Need a sturdy harness

Don't buy, if you...

  1. Want a set that comes with dildos
  2. Prefer a thong-style harness

Vac-U-Lock Ultra Harness Realistic Cock

2.8/5

Overall RatingBedbible Rating

Overall Rating

2.8/5.0

Bedbible Rating:

3/5.0

Reviewed by: 

Amanda Nilsen

User Ratings:

2.5/5.0

Based on user reviews

60/100
DesignBeginner

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 60 out of 100, which means it is designed well.

What it is: The design rating takes into account the shape of the toy in both a visual and ergonomic perspective. We ask our reviewers to rate the overall feeling of the Vac-U-Lock Strap-On.

60/100
Ease of UseEase of Use

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 60 out of 100, which means it is somewhat intuitive and easy to use.

What it is: The Ease of Use rating is a score given on how easy the toy is to operate and use. Aspects that are considered is the suitability for different kinds of people, intuitiveness, and potential learning curve of using the product for pleasure (or pain).

60/100
QualityQuality

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 60 out of 100, which means it is fairly good quality.

What it is: The Quality rating is a score that takes into account the quality of the materials used in the toy, how well it was manufactured, the safety, durability and overall quality feel of the toy.

Moderate

Price ratingPrice ratingPrice ratingPrice ratingPrice rating
PricePrice

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 3 out of 5, which means it is pricier than the rest, but not the most expensive.

What it is: The Price rating is indicated by 1-5 price icons. 1 indicate a very cheap product, while 5 indicate a very expensive product. The rating is a relative score compared to other similar toys.

BeginnerBeginner

Beginner: Suited for those new to the world of sex toys. These products are designed with simplicity and ease of use in mind, providing a gentle introduction to enhance your experiences. Whether you're exploring for the first time or looking for something straightforward, these items are a perfect starting point.

IntermediateIntermediate

Intermediate: Tailored for individuals who have some familiarity with sex toys and are looking to explore further. These products offer a balance between comfort and new sensations, allowing you to expand your horizons and discover new pleasures. Ideal for those ready to take the next step in their journey.

AdvancedAdvanced

Advanced: Designed for the experienced and adventurous. These products cater to those who are well-acquainted with sex toys and are seeking more intense or diverse sensations. If you're looking to push boundaries and explore the depths of pleasure, these items are crafted just for you.

A Closer Look at the Vac-U-Lock Ultra Harness Realistic Cock

This Vac-U-Lock strap-on has a slightly different design, with a thong-style harness. It also comes with a super realistic dildo complete with lifelike balls and veiny textures.

The set includes a Vinyl Harness, 7″ Realistic Cock Attachment, Vac-U-Lock Plug, and Vac-U-Lock Powder, so you are ready to play as soon as it’s delivered!

Pros

  • Nice detailed dildo
  • Realistic look and feel
  • Thong style harness

Cons

  • Not a sturdy harness
  • Difficult to keep large dildo in place

My verdict

Although I like the idea of a sleeker, more elegant, thong-style harness, unfortunately, it seems there’s just not enough material to give this Vac-U-Lock strap-on the stability it needs. The harness is just too thin.

Another reason I marked this strap-on down for quality is that although the dildo looks great, it’s made from PVC, which isn’t body safe.

It’s also not the cheapest, so for this price, I would expect more! I would recommend looking at the other, more sturdy harness options in this post.

Buy, if you...

  1. If you enjoy a realistic looking dildo
  2. Want a simple vac-u-lock strap on
  3. Enjoy a bit girthier dildos
  4. Want a harness for occaisional use

Don't buy, if you...

  1. Are looking for easy backdoor access
  2. Want a sturdy harness
  3. Are looking for silicone dildos

Comparison of the 7 best Vac-U-Lock Strap-On

BestTest Winner Cheapest Beginner Big Double Penetration Harness null
Overall score4.8 / 5.0 4.1 / 5.0 4.5 / 5.0 4.6 / 5.0 - 4.5 / 5.0 2.8 / 5.0
Bedbible rating4.5 / 5.0 4.0 / 5.0 4.5 / 5.0 4.5 / 5.0 4.0 / 5.0 4.3 / 5.0 3.0 / 5.0
User rating5 / 5.0
from 5 users
4.2 / 5.0
from 16 users
4.6 / 5.0
from 6 users
4.7 / 5.0
from 8 users
- 4.7 / 5.0
from 68 users
2.5 / 5.0
from 2 users
PricePremium Cheap Pricey Pricey Cheap Affordable Moderate
Design90 / 100 75 / 100 80 / 100 90 / 100 88 / 100 90 / 100 60 / 100
Ease of use90 / 100 90 / 100 80 / 100 80 / 100 70 / 100 90 / 100 60 / 100
Quality70 / 100 75 / 100 70 / 100 70 / 100 90 / 100 80 / 100 60 / 100
Sound-------
Power-------
Buzzy/Rumbly-------
Harness SizeUp to 69" inchesUp to 53" inchesup to 69 inches inchesUp to 69 inches-Up to 69 inchesUp to 53 inches inches
Vibration modes7 -TPE/PP ----
MaterialsRealistic, Thermoplastic Elastomer PVC -TPE PVC Neoprene, ABS Plastic Dildo: PVC, Harness: Vinyl, Plastic Plug: ABS
Length8.25 inches, 7.25 inches, and 7.25 inches-S: 5.5 inches, M: 6 inches, L: 7 inches inchesS: 8, M: 8, L:10 inchesTotal: 7 inches-7 inches
Insertable length8.25 inches, 6.5 inches, and 6.25 inches-S: 4.5 inches, M: 5.5 inches, L: 6 inches inchesS: 7.5, M: 8, L:10 inchesMain Dildo: 4.5, Anal Dildo: 5.5 inches-6,3 inches
DiameterAll dildos: 1.75 inches-S: 1.5 inches, M: 1.5 inches, L: 2 inches inchesAll dildos: 2 inchesMain Dildo: 1.4, Anal Dildo: 0.9 inches-1,7 inches
Waterproof---Splashproof ---
Show More

Need a Dildo for Your Vac-U-Lock Strap-On?

Not all Vac-U-Lock strap-ons come with a dildo, so be sure to check before buying. If yours doesn’t, here are some of my favorite Vac-U-Lock compatible dildos to choose from!

Vac-U-Lock Smooth Silicone Dong

Vac-U-Lock Smooth Silicone Dong

Vac-U-Lock Smooth Silicone Dong

This dong has a bulbous and tapered tip, with a thicker middle that will give an extra filling sensation as you thrust. Its measurements are 6.5 inches long and 1.5 inches wide, with an insertable length of 6.25 inches.

Check price
Hankey's Toys Rentman

Hankey's Toys Rentman

Hankey's Toys Rentman

For you who crave big dildos this is a great partner in crime for your Vac-U-Lock strap on. It’s a realistic-looking dildo with a detailed shaft, testicles, and head. It measures meaty 10 inches in overall length, 7.5 in  insertable length, and 2 inches in max width. Plus it’s made of body-safe silicone!

Check price
Doc Johnson Black Thunder Realistic Vac-U-Lock Dildo

Doc Johnson Black Thunder Realistic Vac-U-Lock Dildo

Doc Johnson Black Thunder Realistic Vac-U-Lock Dildo

This extra-large dildo has curves in all the right places and will fill you up to your limit! Believe it or not, this mighty shaft is a replica of the famous porn star Black Thunder — perfect for a night of fantasy! It’s a big one, it’s measurements are 12″ in length, 9″ in insertable length, and 2,2 filling inches in diameter. The only downside is that it’s made of PVC.

Check price
Doc Johnson Bust It 8.5 Inch Realistic Squirting Cock

Doc Johnson Bust It 8.5 Inch Realistic Squirting Cock

Doc Johnson Bust It 8.5 Inch Realistic Squirting Cock

If you want the to take realism to the next level and enjoy a full load, this squirting dildo from Doc Johnson is the way to go! It even comes with a tube of Nut Butter so you can get enjoy this ejaculating dildo straight away! Simply fill it up, get to it, and deploy the syringe for your very own creampie experience!

The measurements are: 9.2 inches in total length, 8.5 inches in insertable length and 2 inches wide.

Check price

Comparing the Best Vac-U-Lock Strap-Ons

Still not sure which is the Vac-U-Lock strap-on for you? Here’s a little more information to help you decide.

Rating:

The two Vac-U-Lock strap-ons that stand out with the highest overall ratings are the Vac-U-Lock vibrating ULTRASKYN set and the Vac-U-Lock Real Feel Experienced Set, with both scoring 4.8/5. Both are great options but I would only recommend the Experienced Set to those who enjoy larger dildos.

Price:

There’s quite a lot of variation between prices in this review as some products feature only the Vac-U-Lock strap on harness, while others are complete sets with multiple dildos, making them more expensive.

If you are on a budget, I recommend looking at either the Ultra Harness or the slightly more expensive Luxe Harness and buying a dildo separately.

Experience level:

For those just getting started and looking for a beginner-friendly Vac-U-Lock strap-on, the best option is the Vac-U-Lock Dual Density Starter Set, which has a selection of smaller dildos.

For the more advanced players out there looking for a challenge, I suggest checking out the Experienced Set which has larger dildos or the Double Penetrator.

What is Vac-U-Lock?

Vac-u-lock is an attachment system developed by Doc Johnson to create secure way to attach dildos to strap-on harness and other surfaces. It’s a two-part system, one adapter that is placed on the harness and one adapter placed inside the dildo.

When the attachment is inserted into the dildo, it creates a vacuum that holds the dildo securely in place, no matter how wild you get!

 

This also means that you can mix and match between all compatible Vac-U-Lock attachments for greater versatility!

The Best Vac-U-Lock Attachments & Where to Buy Them

Vac-U-Lock is a pretty ingenious system created and patented by sex toy giant Doc Johnson. It allows you to plug any Vac-U-Lock dildo into whichever attachments and accessories that catch your eye!

Whether you want to enjoy some hands-free riding, achieve some better angles with a handle, peg your partner, or whatever else takes your fancy — there’s a Vac-U-Lock attachment that can make your day.

Here are some of our favorites, and where you can get them for the best price…

Suction Cups

Large Suction Cup with Vac-U-Lock Plug

We all love a suction cup dildo! They’re perfect for hands-free fun, shower sessions and more — just stick them to a smooth surface and get riding.

If your Vac-U-Lock dildo didn’t come with a suction cup, then this attachment is the missing piece in your puzzle. It’s as easy as slipping your favorite Vac-U-Lock dildo onto the plug and you’re ready! It’s also great if you find that your current suction cup is quite weak, as it has an extra large and sturdy base.

Vac-U-Lock Deluxe Suction Cup

If you want to take your suction cup game to the next level, then you may want to check out this deluxe version.

Alongside a strong suction cup base, it also has an arm that can be moved, swivelled and posed to find your perfect position. You can change up the angle and height as much as you need, then lock it into place and ride away!

Vac-U-Lock Deluxe 360° Swivel Suction Cup

This suction cup has a little trick up its sleeve. The Vac-U-Lock plug is attached to a ball that sits in a socket and rotates all the way around. Once you slip your dildo onto the plug, it will be able to move with you, swivelling to hit your sweet spots and allowing you more flexibility as you ride it.

Dildo Handles

Vac-U-Lock Black Handle

Dildo handles can make a huge difference in the comfort and accessibility of using a dildo. If your dildo doesn’t have a lot to grab onto, then adding a handle to the base can make it so much easier to maneuver around!

This handle attachment is simply but ergonomically designed, with a textured handle for better grip and a strong Vac-U-Lock plug.

Vac-U-Lock Knuckle Up Grip

What about a dildo handle with much more of the ‘cool factor’? Reminiscent of a knuckle duster, this handle allows you to securely grip your dildo and thrust away to your heart’s content.

Made from durable ABS plastic, this handle is great for solo play or with a partner. It provides a lot of control over the angle of your dildo, and allows you to put some real power behind your thrusts!

The Realm Drago Lock On Sword Dildo Handle

This dildo handle takes the phrase ‘erotic fantasy’ very literally! Shaped just like a badass sword hilt (complete with two dragon heads), the Drago handle attachment can turn your Lock On dildo into a weapon of mass orgasms.

Whether you wield it yourself or have your partner be your knight in shining armor, it’s sure to please. Plus, it’s always nice to bring a little fun into the bedroom.

Vac-U-Lock Double Up Plug

Sometimes, one dildo just isn’t enough. This nifty little attachment allows you to double up your Vac-U-Lock dildos to create a double-ended wonder! Make a traditional double-ended dildo by attaching two of the same dildos, or vary up the sizes and textures to your preferences.

This Vac-U-Lock attachment is perfect for pleasing two partners together, but can also be used solo if you like to switch up your play. Alternatively, leave one plug free and use it as a handle.

Strap-On Harnesses

Vac-U-Lock Extra Support Supreme Harness

There’s only one thing better than a strap-on, and that’s a strap-on that gives you almost unlimited options! Just attach your favorite Vac-U-Lock dildo to this harness and get pegging.

The Supreme Vac-U-Lock harness is a super comfortable, adjustable, unisex harness with a wide back panel and a padded front panel to cushion the pubic bone. It has jock strap-style straps on the back that allow open access to the butt, because the wearer deserves some pleasure, too!

Vac-U-Lock Dual Density Strap-On Set

Perhaps you don’t have your own Vac-U-Lock dildo yet, or you just want a complete strap-on set that you can start with straight away! We’ve got you covered with this Dual Density Strap-On Set from Doc Johnson.

Included is an adjustable harness, three starter dildos, a Vac-U-Lock base and a Vac-U-Lock suction cup, 3 O-rings, lube, toy cleaner and some renewal powder. The dildo set features both realistic and less phallic textures, and all are double-density, meaning they have a realistic squishy outside and a firm core. We do recommend using a condom with them, as they are made of porous materials.

Vac-U-Lock Vibrating Plug with Wireless Remote

If you want to add a little extra shimmy to your strap-on play, switch out your regular Vac-U-Lock base with this vibrating one. It will attach to your Vac-U-Lock harness and, just like any other Vac-U-Lock plug, can accommodate any and all Vac-U-Lock dildos! Choose from 7 vibration modes, and control them all easily using the remote.

Magic Wand Vac-U-Lock Attachments

Kink Wand Vac-U-Lock Attachment

Wand vibrators are pretty amazing on their own, but adding a magic wand attachment can really elevate them to new heights. Adding this Vac-U-Lock plug over the head of your wand can transform it into an ultra-powerful vibrating dildo, and the best part is that you can use any dildo you want!

This attachment is designed especially for the Doc Johnson Kink Power Wand, but can actually be used with any standard sized wand, as long as the head is between 2.25″ and 2.5″ wide. And don’t worry, that includes the Original Magic Wand.

Sex Machine Vac-U-Lock Attachments

Doc Johnson x Motorbunny Buck Set

The Motorbunny Buck is a sex saddle that vibrates and thrusts — truly the best of both worlds. They have a huge range of sex machine attachments available on their site, but the most extensive might be this collaborative set with Doc Johnson. It includes:

  • 3 silicone attachments
  • 2 Vac-U-Lock dildos
  • A Vac-U-Lock plug (that fits into the attachments)
  • 2 toggles for different thrusting modes
  • A Bluetooth-enabled controller
  • A packet of renewing powder
  • A wedge that allows you to mount the Motorbunny at 90° for doggy-style play

Kink Power Banger

For a more traditional thrusting sex machine experience, check out the Doc Johnson Kink Power Banger. It has an adjustable arm and a Vac-U-Lock plug to which you can attach the dildo of your choice. With a stroke length of 60mm and a top speed of 195 strokes per minute (that’s 3.25 per second!), you’re sure to be satisfied!

Hismith Vac-U-Lock Attachments

Single Vac-U-Lock 3XLR Adaptor

Double Vac-U-Lock KlicLok Adaptor

Hismith are makers of super powerful yet whisper-quiet sex machines. If you want to turn yours into a Vac-U-Lock dream, then check out their range of Vac-U-Lock adaptors.

Which one you get will depend on your specific machine and the attachment mechanism it uses. The two most common are 3XLR and KlicLok, but you should check before you buy!

Reciprocating Saw Vac-U-Lock Adaptor

Not everyone has a sex machine, we know. But, why should you miss out on the fun? This handy Vac-U-Lock plug attachment can turn a reciprocating saw into a powerful thruster!

Take a dig around in your toolbox, give your saw a good clean-up, then replace the blade with this adaptor and you’re ready to go.

Bonus: Vac-U-Lock Powder

If you struggle with attaching and removing your Vac-U-Lock dildos from their plugs, then this Vac-U-Lock powder can make this a lot smoother. Just sprinkle a little of the powder into the hole before you put it onto the attachment, whether it be a suction cup, handle, harness or sex machine.

How To Use a Vac-U-Lock Strap On?

Vac-U-Lock attachments are very simple to use! Here’s my step-by-step instructions for getting started with your new Vac-U-Lock strap-on!

 

How To Use a Vac-U-Lock Strap On?

Insert the plug

Insert the plug

First you need to insert the plug into your vac-u-lock strap on harness. It might look a bit different depending on which one you have.

How To Use a Vac-U-Lock Strap On?

Powder it!

Powder it!

This is not for all Vac-U-Lock strap on dildos, but for some of them you need to powder the inside to be able to attach the plug, otherwise there will be too much friction.

How To Use a Vac-U-Lock Strap On?

Attach it!

Attach it!

You need to attach the dildo to the plug, this is done be twisting it/wiggling it, or just firmly pressing the hole. This is done until the vacuum has created a suction and is attached close to the harness.

How To Use a Vac-U-Lock Strap On?

Buckle up!

Buckle up!

Now it’s time to put on your harness and adjust the straps until you feel it close to your body and comfortable enough to do some thrusting.

How to clean a vac u lock strap on?

It all depends on which one you have bought, we recommend you read the user manual before cleaning, or even using, it. If you don't have it, check what material it's made from both the harness and the strap on, see if there are any electronic functions that you need to be aware of. Detach your dildo from the harness and clean with either warm water and fragrance free soap or a sex toy cleaner and then dry thoroughly. ULTRASKYN dildos might also require a renewal powder to maintain them.

Porous
materials

Soft plastic, hard plastic, jelly, rubber, Cyberskin are all porous materials, meaning that small particles and bacteria can penetrate the surface. This makes it impossible to completely clean these types of materials.

Therefore, it is recommended that you use a condom with these types of toys, especially if you are sharing them. Clean these toys with mild soapy water and dry gently with a towel. These materials are more easily damaged, so be sure to be gentle and make sure your toys are completely dry before storing.

Non-propous
materials

Silicone, glass, stainless steel and some hard plastics can all be washed using a mild soap (like you would use on your body) and warm water. Just be careful if your toy contains electrical parts.

Silicone and stainless steel toys without any electrical parts can also be boiled for sterilisation.

The toys with electrical
components

If your toys contain electrical components, be extra careful when cleaning them and always check the instructions provided with the toy. You can use a gentle cloth and soap to wipe or sex toy cleaner or cleaning wipe to down your toy, making sure that no water comes into contact with the electrical parts.

FAQ

What is a Vac-U-Lock?
Vac-U-Lock is a patented harness system which has a special harness and strap-on lock. It's a plug that locks together with a system built upon vacuum pressure.
How to put on a Vac-U-Lock dildo?
You need a Vac-U-Lock Dildo, a Vac-U-Lock harness and an adapter plug. The adapter plug needs to go into the harness plug and then into the base of the dildo.
How to make a dildo Vac-U-Lock?
I don't recommend trying to make your own as Vac-U-Lock strap-ons have a very specific fitting to make sure everything locks securely into place and you could end up ruining a perfectly good dildo!
How to remove a Vac-U-Lock plug?
It's pretty much the opposite from how you attach it. Do detach your vac u lock dildo you twist it and pull it away from the harness. If it is stuck then you can tilt it on the side to break the vacuum.
How to wear Vac-U-Lock strap on?
When you have added the dildo you need to put it on and adjust the straps so it fits your body.

What is a Vac U Lock Strap On?

Vac U Lock Strap On is a special harness and strap on, a system developed by the brand Doc Johnson. It's a special adapter and plug system that allows you to use a wide range of Vac-U-Lock dildos with one harness.

Author
Amanda Nilsen
Amanda Nilsen

Here are all reviews and blog posts written by Amanda Nilsen.

Stay tuned for more content from this author.

Age: 26
Gender: Female
Sexual orientation: Heterosexual
Sex toy experience: Experienced
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