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

Amanda Nilsen
by Amanda NilsenLast updated:
best vac u lock strap on in test
Vac-u-lock strap ons are probably the market’s most robust strap-ons with their two-parted system based on vacuum. If you want to know more about vac-u-lock, how to use it, and if you are interested in finding one that fits you, you´re in the right place. Welcome to Bedbible and our post about Vac U Lock Strap Ons.
Test WinnerCheapestBeginnerBigDouble PenetrationHarness
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn
Vac-U-Lock Ultra Harness With Plug
Vac-U-Lock Dual Density Strap-On Set
Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo
Black Double Penetrator Vac-U-Lock Attachment
Vac-U-Lock Luxe Strap On Harness
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Vac-U-Lock Ultra Harness With PlugVac-U-Lock Dual Density Strap-On SetDoc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Black Double Penetrator Vac-U-Lock AttachmentVac-U-Lock Luxe Strap On Harness
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The process of testing vac-u-lock strap ons

There are a lot of hours spent on this post and there are a lot of people involved. It’s hours of internet research where we’ve looked for the most popular vac-u-lock strapons, hours of reading customer reviews, comparing and summarizing them. But what about the people? We have talked with our own sexperts – Bedbible’s testers, that has provided us with information about their personal experience. It’s all of this together with our own expertise that we have gained from writing 500+ reviews.

The process of testing vac-u-lock strap ons

 

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

  • It’s a great option when you want to explore pegging, safe and secure play
  • Enjoy strap on power play
  • If you want to be able to do wild and crazy thrusts and other movements in a safe way
  • If you don’t have a penis but still want to enjoy penetrating your partner
  • If you have a penis but don’t feel like it’s enough, have a problem with erection, or just want to explore another type of penetration

 

Who can use a vac-u-lock?

Anyone can use a vac-u-lock, most harnesses that support the vac-u-lock system are made unisex. That means that it’s possible to wear it no matter what sex you are. Although some don’t have space beloved where the genitals are it means it won’t be comfortable for people with penises to wear them.

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 a adapter plug. The adapter plug needs to go into the harness plug and that how a vacuum is created and locks it.
How to make a dildo vac u lock?
There are a lot of compatible dildos to use for your vaculock strap on, but if you still want to use your other sex toys you can do a bit of DIY. We have heard from others that you can drill a 5/8 hole in your flared based dildo and fit it. Although we do not guarantee that this works or that your dildo will still be ok.
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 attached to a unisex and adjustable strap on harness.

Table of contents (12)

The 7 Best vac u lock strap ons in Test

1 Test Winner

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

Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set
Design:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn 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 Use:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn was rated 100 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).

100/100
Quality:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn was rated 100 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.

100/100
Price:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn was rated 5 out of 5, which means it is very 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.

High

Bedbible rating:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn was rated 4.9 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn .

4.9/5.0

Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Review
User rating:

Rating: Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn was rated 5.0 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

5.0/5.0

Sources
Rating star5/5Lovehoney.com (2)
Rating star5/5Lovehoney.com (3)
Rating star5/5Pinkcherry (2)
Lovehoney.com
ProsDiscreet shipping and billingPros15% off by email sign-upProsFree shipping on orders over $60
Check price
Lovehoney.com
ProsDiscreet shipping and billingPros15% off by email sign-upProsFree shipping on orders over $60
Check price
Pinkcherry
ProsDiscreet shipping & billing​Pros4.7/5 rating of 100k reviewsProsFREE shipping on orders $59+
Check price

If you are looking for sensational penetration, this is your chance! It’s pretty much the only set you need, after all, it’s a 13-piece strap-on kit.

This is included with your vac u lock strap on: 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.

It’s a mix of life-like dildos and straight-shafted ones, possibilities to attach vibrations and a nice realistic skin feel.

Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set test
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set features
Recommended for the intermediate user

The Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set was rated 50 out of 100 meaning that it is most suitable for someone with some experience

BeginnerIntermediateAdvanced
You should buy the Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn if you...
You should buyAre looking for a vac u lock strap on set
You should buyEnjoy variation
You should buyWant remote controlled vibrations
You should buyAre in the beginning of your strap on journey
You should buyWant to use it with multiple partners
You should NOT buy the Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn if you...
You should NOT buyWant to combine it with water play
You should NOT buyAre a complete beginner (size)
You should NOT buyAre looking for just one vac u lock strap on
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set features
Features
Harness SizeUp to 69" inches
Vibration modes7 
MaterialsRealistic, Thermoplastic Elastomer 
Length8,7 & 7 inches
Diameter1,75, 1,75 & 1,75 inches
Pros
ProsThree different sized and shaped dildos
ProsAttachable vibrators
ProsAvailable in different colors
ProsSoft skin
ProsCleaning kit included
Cons
ConsNot waterproof
ConsBasic harness
Conclusion

If you buy this set you will literally be set for life, 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 minus we have is the harness, it’s got a pretty boring and basic look. For a vac u lock strap on set this extra it’s a disappointment. But I guess, it is compensated by the feeling.

2 Cheapest

Vac-U-Lock Ultra Harness With Plug

Vac-U-Lock Ultra Harness With Plug
Design:

Rating: Vac-U-Lock Ultra Harness With Plug 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 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).

90/100
Quality:

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.

75/100
Price:

Rating: Vac-U-Lock Ultra Harness With Plug was rated 2 out of 5, which means it is priced in the middle.

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.

Low

Bedbible rating:

Rating: Vac-U-Lock Ultra Harness With Plug was rated 3.5 out of 5, which means it is a top tier sex toy rated amongst the best.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Vac-U-Lock Ultra Harness With Plug.

3.5/5.0

Vac-U-Lock Ultra Harness With Plug Review
User rating:

Rating: Vac-U-Lock Ultra Harness With Plug was rated 5.0 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

5.0/5.0

Sources
Rating star5/5HustlerHollywood (1)
HustlerHollywood
ProsDiscreet shipping & billingPros15% off with email sign-up ProsFREE shipping on orders $79+
Check price

This is one of the cheapest vac u lock strap ons you can find on the market, it has got a simple and discrete design. It doesn’t have a lot of straps and it’s got one adjustable buckle for the waist strap. Good to know is that there are not any dildos included, only a small adapter plug to attack a vac-lock dildo.

It is designed with an open crotch and it leaves enough space for people with penises to wear this vac u lock strap on.

Vac-U-Lock Ultra Harness With Plug test
Recommended for the beginner

The Vac-U-Lock Ultra Harness With Plug was rated 0 out of 100 meaning that it is most suitable for a complete beginner

BeginnerIntermediateAdvanced
You should buy the Vac-U-Lock Ultra Harness With Plug if you...
You should buyWant to try a strap on without spending a lot of money
You should buyAre going to use small-sized dildos
You should buyHave a penis (harness with a lot of space)
You should buyAre looking for a cheap vac u lock strap on
You should NOT buy the Vac-U-Lock Ultra Harness With Plug if you...
You should NOT buyAre looking for a sturdy harness
You should NOT buyWant a high-quality vac u lock strap on
Features
Harness SizeUp to 53" inches
MaterialsPVC 
Pros
ProsSpace for penis underneath
ProsEasy to use
ProsSimple to adjust
ProsOpen crotch
Cons
ConsNo dildo included
ConsNot that sturdy
Conclusion

The price has its reasons, it is a good vac-u-lock but not as good as the previous one. Here you don´t get any extra dildos, it’s just the harness. The quality isn´t as good, but still good enough for the one who wants to just try a vac u lock strap on before spending a lot of money.

It’s very easy to use and suits best with small dildos, it gets a bit unstable when using heavier dildos. Great for a newbie to explore pegging and other kinds of strap on play.

3 Beginner

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

Vac-U-Lock Dual Density Dildo & Plug Starter Set
Design:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 50 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.

50/100
Ease of Use:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 50 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).

50/100
Quality:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 50 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.

50/100
Price:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 5 out of 5, which means it is very 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.

High

Bedbible rating:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 4.5 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Vac-U-Lock Dual Density Strap-On Set.

4.5/5.0

Vac-U-Lock Dual Density Strap-On Set Review
User rating:

Rating: Vac-U-Lock Dual Density Strap-On Set was rated 4.6 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

4.6/5.0

Sources
Rating star4.5/5Lovehoney.com (2)
Rating star4.7/5HustlerHollywood (3)
Lovehoney.com
ProsDiscreet shipping and billingPros15% off by email sign-upProsFree shipping on orders over $60
Check price
HustlerHollywood
ProsDiscreet shipping & billingPros15% off with email sign-up ProsFREE shipping on orders $79+
Check price

Here we got the perfect vac u lock strap on set for the beginner. First of all the dildos have a suction base that introduces hands-free solo-play, perfect for the one who wants to practice and get the feel before playing with their partner.

You have three different dildos to choose from, they are all in different sizes beginning with 5” and ending up with 7”. They are also all of 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 has a pair of testicles too.

Vac-U-Lock Dual Density Dildo & Plug Starter Set test
Vac-U-Lock Dual Density Dildo & Plug Starter Set features
Recommended for the intermediate user

The Vac-U-Lock Dual Density Dildo & Plug Starter Set was rated 50 out of 100 meaning that it is most suitable for someone with some experience

BeginnerIntermediateAdvanced
You should buy the Vac-U-Lock Dual Density Strap-On Set if you...
You should buyAre a beginner to vac u lock strap on
You should buyWant a set for pegging
You should buyEnjoy ridged dildos
You should buyWant life-like feeling dildos
You should buyEnjoy solo hands-free masturbation
You should NOT buy the Vac-U-Lock Dual Density Strap-On Set if you...
You should NOT buyAre looking for vibrating vac u lock strap on
You should NOT buyAre looking for girthy dildos
Vac-U-Lock Dual Density Dildo & Plug Starter Set features
Features
Length7,6 & 5,5 inches
Diameter2, 1,5 & 1,5 inches
Vibration modesTPE/PP 
Pros
ProsBeginner-friendly
ProsComfortable harness
ProsAvailable in different colors
ProsA lot of value for the money
ProsMade from ultraskyn material
Cons
ConsPretty expensive
Conclusion

With ultraskyn material, a material that makes the dildo have a pliable exterior with a firm inner core these dildos feel very realistic. Thanks to how easy they are to handle it’s great for beginners, even though it is still good to find an even smaller dildo to use for warm-up.

It quickly warms up to body temperature and when it comes to being waterproof it’s submersible. It’s made out of TPE and therefore, compatible with a lot of different lubes and there is one lube included.

4 Big

Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set

Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set
Design:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo was rated 100 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.

100/100
Ease of Use:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo 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).

80/100
Quality:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo was rated 100 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.

100/100
Price:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo was rated 5 out of 5, which means it is very 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.

High

Bedbible rating:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo was rated 4.7 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo .

4.7/5.0

Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Review
User rating:

Rating: Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo was rated 5.0 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

5.0/5.0

Sources
Rating star5/5Lovehoney.com (6)
Lovehoney.com
ProsDiscreet shipping and billingPros15% off by email sign-upProsFree shipping on orders over $60
Check price

Looking for something big, girthy, and fleshy? Here we got a big vac u lock strap on for experienced users. It’s a kit where you get everything you need from dildos to toy cleaners. There are three different dildos, two with veiny shafts and all of them with pronounced heads.

The storage box the set comes in is great to keep for easy storage after use. When using big vac u lock strap-ons like these, lube is a must! Luckily there is lube included, but you will most probably need to buy some more.

Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set test
Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set features
Recommended for the intermediate and advanced

The Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set was rated 75 out of 100 meaning that it is most suitable for someone with some experience

BeginnerIntermediateAdvanced
You should buy the Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo if you...
You should buyAre looking for girthy dildos
You should buyEnjoy fulfillment
You should buyHave money to spend
You should buyWant a set for the experienced users
You should buyAre looking for a sturdy harness
You should NOT buy the Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo if you...
You should NOT buyEnjoy small dildos
You should NOT buyAre a beginner to pegging
You should NOT buyHave a penis (no open crotch)
Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo Set features
Features
Harness SizeUp to 69 inches
Insertable length10, 8, 8 inches
Materials Soft Plastic 
WaterproofSplashproof 
Pros
ProsGirthy dildos
ProsRealistic looking
ProsLife-like core
ProsComfortable to use
Cons
ConsNot naturally positioned
ConsNot for beginners
ConsA struggle for penis users to use as givers
Conclusion

This is definitely not a vac u lock strap-on for the beginner. The three dildos are big and therefore it’s also not really naturally positioned, this means it might be a bit difficult to get the powerful thrust motions going.

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.

5 Double Penetration

Black Double Penetrator Vac-U-Lock Attachment

Black Double Penetrator Vac-U-Lock Attachment
Design:

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.

88/100
Ease 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).

70/100
Quality:

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.

90/100
Price:

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 1 out of 5, which means it is cheap compared to other vac u lock strap ons.

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.

Low

Bedbible rating:

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 4 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Black Double Penetrator Vac-U-Lock Attachment.

4.0/5.0

Black Double Penetrator Vac-U-Lock Attachment Review
User rating:

Rating: Black Double Penetrator Vac-U-Lock Attachment was rated 5.0 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

5.0/5.0

Sources
Rating star5/5TooTimid (1)
TooTimid
ProsDiscreet shipping & billingPros1-year warrantyProsFREE shipping on orders $59+
Check price

This is for you who always want more and can’t get enough – the double penetration vac u lock strap on, it’s got two dildos for maximum intense pleasure. It’s created for people with a vulva to experience the ultimate fulfillment.

There is one bigger dildo, which we call the “main dildo” that goes into the vagina and one slimmer dildo meant to be used as an anal dildo. Both dildos have got raised veins on their shaft with clear heads, the anal dildo is a bit more flexible than the main dildo.

Black Double Penetrator Vac-U-Lock Attachment test
Recommended for the intermediate and advanced

The Black Double Penetrator Vac-U-Lock Attachment was rated 70 out of 100 meaning that it is most suitable for someone with some experience

BeginnerIntermediateAdvanced
You should buy the Black Double Penetrator Vac-U-Lock Attachment if you...
You should buyEnjoy double penetration or want to try
You should buyAre an experienced sex toy user
You should buyAre aware there is no harness included
You should buyEnjoy the feeling of fulfillment
You should NOT buy the Black Double Penetrator Vac-U-Lock Attachment if you...
You should NOT buyAre a beginner to anal play
You should NOT buyThe receiver has a penis
Features
LengthMain Dildo: 6,35 inches
LengthAnal Dildo: 6,35 inches
Insertable lengthMain Dildo: 4,7 inches
Insertable lengthAnal Dildo: 4,7 inches
DiameterMain Dildo: 1 inches
DiameterAnal Dildo: 1,5 inches
MaterialsPVC 
Pros
ProsIntense pleasure
ProsFulfillment
ProsFlexible anal dildo
ProsNice details
Cons
ConsNo harness included
Conclusion

This double-penetration dildo can be used both for solo orgasms and partner play, be aware that it doesn’t include a harness, this is a reason why the price is so low compared to the other reviewed products.

It’s not for beginners, it’s good if you explored at least anal play before and maybe tried out double penetration once or twice. The anal dildo is very flexible which makes insertion easier for you.

6 Harness

Vac-U-Lock Luxe Strap On Harness

Vac-U-Lock Luxe Strap On Harness
Design:

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 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).

90/100
Quality:

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.

80/100
Price:

Rating: Vac-U-Lock Luxe Strap On Harness was rated 2 out of 5, which means it is priced in the middle.

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.

Low

Bedbible rating:

Rating: Vac-U-Lock Luxe Strap On Harness was rated 4.3 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Vac-U-Lock Luxe Strap On Harness.

4.3/5.0

Vac-U-Lock Luxe Strap On Harness Review
User rating:

Rating: Vac-U-Lock Luxe Strap On Harness was rated 4.7 out of 5, which means it is amongst the absolute best of toys that I can absolutely recommend you try out.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

4.7/5.0

Sources
Rating star4.6/5Lovehoney.com (16)
Rating star5/5HustlerHollywood (5)
Lovehoney.com
ProsDiscreet shipping and billingPros15% off by email sign-upProsFree shipping on orders over $60
Check price
HustlerHollywood
ProsDiscreet shipping & billingPros15% off with email sign-up ProsFREE shipping on orders $79+
Check price

This is one of the cheaper vac-u-lock-strap ons and is great for both beginners and more experienced users. This harness is compatible with, of course, the vac-u-lock dildos but also with classic flared-based dildos. This means that your dildos to choose from just got bigger.

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

Vac-U-Lock Luxe Strap On Harness test
Vac-U-Lock Luxe Strap On Harness features
Recommended for the beginner

The Vac-U-Lock Luxe Strap On Harness was rated 0 out of 100 meaning that it is most suitable for a complete beginner

BeginnerIntermediateAdvanced
You should buy the Vac-U-Lock Luxe Strap On Harness if you...
You should buyAre new to strap ons
You should buyWant to use bot vac-u-lock and flared-based dildos
You should buyEnjoy a simple design
You should buyLike a sturdy harness
You should NOT buy the Vac-U-Lock Luxe Strap On Harness if you...
You should NOT buyThe poppers break easily
Vac-U-Lock Luxe Strap On Harness features
Features
MaterialsNeoprene, ABS Plastic 
Harness SizeUp to 69 inches
Pros
ProsSimple and discrete design
ProsCompatible with both vac-u-lock and flare-based dildos
ProsComfortable to use
ProsEasy to adjust
Cons
ConsOnly one small plug included
ConsPoppers are not the best quality
ConsNo dildo included
Conclusion

This vac-u-lock-strap-on is very light weighted, easy to put on and take off, and at the same time sturdy during use. What can be a bit difficult is placing the plug into the harness, and the poppers might not be the best quality.

Besides that, the harness is very easy to use and adjust for your body type and comfort. It’s a good entry-level strap-on as well as for the more experienced.

7

Vac-U-Lock Ultra Harness Realistic Cock

Vac-U-Lock Ultra Harness Realistic Cock
Design:

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 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
Quality:

Rating: Vac-U-Lock Ultra Harness Realistic Cock 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.

75/100
Price:

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 3 out of 5, which means it 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.

Medium

Bedbible rating:

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 3.5 out of 5, which means it is a top tier sex toy rated amongst the best.

What it is: The Bedbible rating is indicated by 1-5 stars. 1 indicates a very bad product, while 5 indicate a very good product. It is the overall rating given by our tester which makes it a very subjective score of the Vac-U-Lock Ultra Harness Realistic Cock.

3.5/5.0

Vac-U-Lock Ultra Harness Realistic Cock Review
User rating:

Rating: Vac-U-Lock Ultra Harness Realistic Cock was rated 3.0 out of 5, which means it is a top tier sex toy rated amongst the best.

What it is: The User rating is indicated by 1-5 stars. The score is an aggregated rating of all online ratings. We find and aggregate all ratings based on a weighting system that takes into account how many reviews are available at each source.

3.0/5.0

Sources
Rating star3/5SheVibe (1)
SheVibe
ProsDiscreet shipping & billing​ProsTheir website ROCKS!ProsFREE shipping on orders $68+
Check price

If you enjoy realistic phallic-looking dildos this is your turn, here we got a vac-u-lock-strap on fitting like a thong. That means it doesn’t leave any easy entrance for the back passage. It does have some space just underneath the realistic testicles which mean the wearer can be a person with a penis.

The shaft is filled with raised veins and a cleared detailed head and two marked testicles.

Includes Vinyl Harness, 7″ Realistic Cock Attachment, Vac-U-Lock Plug, Vac-U-Lock Powder

Vac-U-Lock Ultra Harness Realistic Cock test
Vac-U-Lock Ultra Harness Realistic Cock features
Recommended for the intermediate user

The Vac-U-Lock Ultra Harness Realistic Cock was rated 50 out of 100 meaning that it is most suitable for someone with some experience

BeginnerIntermediateAdvanced
You should buy the Vac-U-Lock Ultra Harness Realistic Cock if you...
You should buyIf you enjoy a realistic looking dildo
You should buyWant a simple vac-u-lock strap on
You should buyEnjoy a bit girthier dildos
You should NOT buy the Vac-U-Lock Ultra Harness Realistic Cock if you...
You should NOT buyAre looking for easy behind access
You should NOT buyWant a sturdy harness
You should NOT buyAre looking for silicone dildos
Vac-U-Lock Ultra Harness Realistic Cock features
Features
MaterialsPVC Dildo, Vinyl Harness, ABS Plastic Plug 
Length7 inches
Diameter1,7 inches
Insertable length6,3 inches
Pros
ProsNice detailed dildo
ProsSoft surfaced dildo
ProsGirthy dildo
Cons
ConsNot a sturdy harness
ConsDifficult to keep in place
Conclusion

This vac-u-lock-strap on does not have any straps for the butt checks which means it can be a bit difficult to get it to stay in place, it’s not as sturdy as some other strap-ons. Therefore, it can be a bit difficult to do powerful thrusts.

Remember that if you get tired of your realistic dildo you can always change to another vac-u-lock product and explore more.

Comparison of the 7 best vac u lock strap ons

Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn
Vac-U-Lock Ultra Harness With Plug
Vac-U-Lock Ultra Harness With Plug
Vac-U-Lock Dual Density Strap-On Set
Vac-U-Lock Dual Density Strap-On Set
Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo
Doc Johnson Vac-U-Lock Realistic Feel Advanced Strap-On Dildo
Black Double Penetrator Vac-U-Lock Attachment
Black Double Penetrator Vac-U-Lock Attachment
Vac-U-Lock Luxe Strap On Harness
Vac-U-Lock Luxe Strap On Harness
Vac-U-Lock Ultra Harness Realistic Cock
Vac-U-Lock Ultra Harness Realistic Cock
BestTest WinnerCheapestBeginnerBigDouble PenetrationHarness
Overall score5.0 / 5.04.3 / 5.04.5 / 5.04.8 / 5.04.5 / 5.04.5 / 5.03.3 / 5.0
Bedbible rating4.9 / 5.03.5 / 5.04.5 / 5.04.7 / 5.04.0 / 5.04.3 / 5.03.5 / 5.0
User rating5 / 5.0
from 7 users		5 / 5.0
from 1 users		4.6 / 5.0
from 5 users		5 / 5.0
from 6 users		5 / 5.0
from 1 users		4.7 / 5.0
from 21 users		3 / 5.0
from 1 users
PriceHighLowHighHighLowLowMedium
Design90 / 10080 / 10050 / 100100 / 10088 / 10090 / 10060 / 100
Ease of use100 / 10090 / 10050 / 10080 / 10070 / 10090 / 10060 / 100
Quality100 / 10075 / 10050 / 100100 / 10090 / 10080 / 10075 / 100
Sound50 / 10050 / 10050 / 10050 / 10050 / 10050 / 10050 / 100
Power60 / 10060 / 10060 / 10060 / 10060 / 10060 / 10060 / 100
Harness SizeUp to 69"Up to 53"-Up to 69-Up to 69-
Vibration modes7-TPE/PP----
MaterialsRealistic, Thermoplastic ElastomerPVC- Soft PlasticPVCNeoprene, ABS PlasticPVC Dildo, Vinyl Harness, ABS Plastic Plug
Length8,7 & 7-7,6 & 5,5-Main Dildo: 6,35-7
Diameter1,75, 1,75 & 1,75-2, 1,5 & 1,5-Main Dildo: 1-1,7
Insertable length---10, 8, 8Main Dildo: 4,7-6,3
Waterproof---Splashproof---
Show More

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

It’s not always that you buy a vaculock strap on that comes with a compatible dildo. And the vac u lock system is a bit tricky in that way, not all strap on compatible dildos are possible to use. We’ve actually written a post about the best vac-u-lock attachments‘ too. But anyway, here are a few recommendations for you who want to add a dildo.