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

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.

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.
Table of contents (13)
The 7 Best vac u lock strap ons in Test
Doc Johnson Vac-U-Lock Vibrating Dual-Density Ultraskyn Harness Set


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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.


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.
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 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.

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


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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.


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


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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.


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.
Black Double Penetrator Vac-U-Lock Attachment

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.

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.
Vac-U-Lock Luxe Strap On Harness


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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.


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.
Vac-U-Lock Ultra Harness Realistic Cock


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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


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
Best | Test Winner | Cheapest | Beginner | Big | Double Penetration | Harness | null |
Overall score | 5.0 / 5.0 | 4.3 / 5.0 | 4.5 / 5.0 | 4.8 / 5.0 | 4.5 / 5.0 | 4.5 / 5.0 | 3.3 / 5.0 |
Bedbible rating | 4.9 / 5.0 | 3.5 / 5.0 | 4.5 / 5.0 | 4.7 / 5.0 | 4.0 / 5.0 | 4.3 / 5.0 | 3.5 / 5.0 |
User rating | 5 / 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 |
Price | High | Low | High | High | Low | Low | Medium |
Design | 90 / 100 | 80 / 100 | 50 / 100 | 100 / 100 | 88 / 100 | 90 / 100 | 60 / 100 |
Ease of use | 100 / 100 | 90 / 100 | 50 / 100 | 80 / 100 | 70 / 100 | 90 / 100 | 60 / 100 |
Quality | 100 / 100 | 75 / 100 | 50 / 100 | 100 / 100 | 90 / 100 | 80 / 100 | 75 / 100 |
Sound | - | - | - | - | - | - | - |
Power | - | - | - | - | - | - | - |
Buzzy/Rumbly | - | - | - | - | - | - | - |
Harness Size | Up to 69" inches | Up to 53" inches | - | Up to 69 inches | - | Up to 69 inches | - |
Vibration modes | 7 | - | TPE/PP | - | - | - | - |
Materials | Realistic, Thermoplastic Elastomer | PVC | - | Soft Plastic | PVC | Neoprene, ABS Plastic | PVC Dildo, Vinyl Harness, ABS Plastic Plug |
Length | 8,7 & 7 inches | - | 7,6 & 5,5 inches | - | Main Dildo: 6,35 inches | - | 7 inches |
Diameter | 1,75, 1,75 & 1,75 inches | - | 2, 1,5 & 1,5 inches | - | Main Dildo: 1 inches | - | 1,7 inches |
Insertable length | - | - | - | 10, 8, 8 inches | Main Dildo: 4,7 inches | - | 6,3 inches |
Waterproof | - | - | - | Splashproof | - | - | - |
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.

Vac-U-Lock Smooth Silicone Dong

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

Hankey's Toys Rentman
