• Guide to Vac-U-Lock Strap-On Dildos and Harnesses

    1. 2 for £30 dildos - choose from £20+ toys and get up to £20 off!
    2. ^ FREE Cock Ring with Clone-A-Willy Moulding Kits

    The most complicated part of enjoying strap-on sex is making sure you get your hands on the right equipment, and ensuring the harness and dildo you own are compatible with one another. In addition, if your tastes change, and you fancy trying a larger or smaller attachment, the process of making sure the girth of your toy fits the harness you have can be a bit of a nightmare!

    To solve this issue, Doc Johnson came up with an ingenious strap-on system. Vac-U-Lock is the world's first fully interchangeable pleasure system which enables you to enjoy strap on sex, without worrying about O-rings, flared bases and appendage girths. All you need to do is check whether the toy is Vac-U-Lock friendly, and you're good to go!


    1. To watch videos, you need Version 9 or greater of the Flash Player. Click here to see which Flash Version you have. If you have Version 8 or less, get the latest Flash Player here.

      You also need to have JavaScript enabled in your browser.

    Products featured: Doc Johnson Vac-U-Lock Leather Ultra Harness 3000, Doc Johnson Vac-U-Lock UR3 8 Inch Realistic Dildo, Doc Johnson Vac-U-Lock Powder, Doc Johnson Vac-U-Lock Platinum Corset Harness


    How does it work?

    Unlike most strap-ons which require an O-ring set up, Vac-U-Lock strap-ons feature a unique plug system which securely holds your attachment in place for penetrative fun. By using a plug instead of an O-ring, Vac-U-Lock harnesses are compatible with all Vac-U-Lock attachments, no matter the size or girth of the attachment you'd like to use.

    Doc Johnson Black Rose Vac-U-Lock Harness Kit with 6 Inch G-Spot DildoSo, how does it all work? Well, each Vac-U-Lock attachment is designed with a purpose-built hole in the bottom which fits perfectly over the patented plug. To attach your dildo to the harness, simply push your chosen toy onto the the plug and voilà! You're ready to roll.

    With no need to feed the attachment through an O-ring, you don't need to work out whether the girth of an attachment is compatible with your harness and O-ring. This makes shopping for new attachments online even easier, and gives you the freedom to experiment fully and discover the perfect proportions for you and your partner.

    If you like the idea of moving across to the Vac-U-Lock system, but don't want to feel you've wasted money on purchasing traditional flared base strap on toys, fear not! Doc Johnson have also created a 'Platinum' version of the harness which is compatible with both Vac-U-Lock and flared based toys.


    Take A Closer Look

    Doc Johnson have created a range of Vac-U-Lock products and accessories to satisfy every need, want and fancy! Scroll through these key products to learn about each one. Perhaps you'll be inspired to try one yourself?


    How to Shop Vac-U-Lock

    If you're totally new to strap-on fun, you'll probably want to purchase a complete Vac-U-Lock set to begin with as they include everything you need to get started. Pay attention to the key features of each set to make sure you're happy with the fit of the harness and the size of the attachment. You don't want to get a surprise when your parcel arrives!

    If you already own some strap-on dildos or accessories but want to try Vac-U-Lock for the first time, make sure you look out for a harness which includes O-rings too so you can still benefit from all your old strap-on dildos if you want to.

    The good news is that all Vac-U-Lock products are made from durable materials and chances are once you've bought one, you won't need to buy another for a very, very long time. Remember, you can also take advantage of Lovehoney's amazing 1 year no-quibbles return policy if your new dildo isn't exactly what you want.

    Doc Johnson make it even easier to shop for Vac-U-Lock by colour coding all the packaging:

    1. 1. Complete Set

      Doc Johnson Vac-U-Lock Ultra Harness Kit with 6 Inch Dildo

      If you're brand new to Vac-U-Lock, or strap-ons in general, the best thing to buy first is a complete set.

      A full set comes with everything you need to get started on your strap-on adventure, including an adjustable harness, Vac-U-Lock plug, dildo attachment and a sample of Easy-on/Easy-off Vac-U-Powder.

      Full sets are packaged in orange boxes marked with the number '1'.

    2. 2. Attachments

      Vac-U-Lock Attachment

      Vac-U-Lock attachments are considered any items which anchor to a Vac-U-Lock plug.

      Although Vac-U-Lock attachments are perfectly enjoyable when used on their own, they perform at their best when paired with a Vac-U-Lock accessory like a harness or suction cup.

      Attachments are packaged in purple boxes marked with the number '2'.

    3. 3. Accessories

      Vac-U-Lock Accessory

      If you own any Vac-U-Lock attachments, you might like to browse the accessories too.

      Vac-U-Lock accessories are an array of plug-in products which transform your attachments into fully-functioning sex toys for all sorts of kinky fun. These include harnesses without an attachment.

      Accessories are packaged in blue boxes marked with the number '3'.



    Need more help?

    You can Contact Customer Care, who will be able to help you find the right strap-on set. You can send an email, telephone or live chat to an experienced advisor from 24 hours a day, 7 days a week.

    The other great place to look for people's advice on sex toys is on the Lovehoney Forum, where our community is on hand to give their opinions and tips.

    Contact Lovehoney Customer Care | Visit The Lovehoney Forum


    You may also like: 

    Comments (3)

    • Carol: September 04, 2014 09:52
      Great article, explains everything very well.
    • Nick: September 06, 2014 16:55
      I already own the Vac U Lock Platinum Corset harness and it is fantastic used with the 8" pink jelly dong attachment.

      Looking for other attachments to offer more choice though, I can only find one on the lovehoney website. Where have they all gone?

    • Lovehoney Nicole: September 24, 2014 19:03
      Hi Nick,

      Here are all the Vac-U-Lock compatible dildos: www.lovehoney.co.uk/sex-toys/dildos/all/all/all/all/all/vac-u-lock/

      Hope that helps!

    Add a comment
    1. Yes, please! Email me when there are more comments after mine
    2. We need to ask you a question to prove you're a human because evil spam computers keep abusing our form!