Doc Johnson Vac-U-Lock Platinum Supreme Harness with Plug creates hands-free strap-on action with patented vacuum attachment technology. Cushioned neoprene construction adjusts up to 69-inch waist while three O-ring sizes accommodate any compatible toy for versatile penetration play.
Key Features:
Premium neoprene harness accommodates all Vac U Lock dildos for secure penetrative play with cushioned back support and adjustable straps up to sixty nine inches for maximum comfort during vigorous sexual activity.
Patented vacuum lock system creates strong suction to hold dildo attachments firmly in place during thrusting motions eliminating slippage for uninterrupted penetration and orgasmic stimulation for both partners.
Open crotch design allows clitoral access during penetrative play while snap front closure enables quick dildo changes for varied sexual experiences without removing the harness completely from the body.
Three interchangeable O ring sizes accommodate different dildo diameters for customized fit while dual compatibility works with both Vac U Lock attachments and standard strap on compatible sex toys for versatile play options.
Ergonomic construction supports extended sexual sessions with pull to tighten straps for secure positioning during anal and vaginal penetration while washable neoprene material maintains hygiene between intimate encounters and partners.
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Doc Johnson's Vac-U-Lock Platinum Supreme Harness with Plug uses patented vacuum technology to lock any compatible attachment firmly in place. This premium neoprene harness is built for couples who want reliable, hands-free penetration play without slippage or instability.
Why choose the Vac-U-Lock Platinum Supreme Harness with Plug
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📦 Discreet plain-wrapped delivery • 💳 Private billing • ↩️ Easy size-swap returns |
A vacuum plug creates an airtight seal between the harness and any Vac-U-Lock compatible attachment, locking it rigidly in place. Unlike traditional O-ring harnesses where sex toys can shift or rotate, this vacuum system keeps the attachment perfectly aligned with your hip movements. When you thrust, the sex toy responds as a controlled extension of your body, not as a loose object fumbling around inside your partner.
Smooth neoprene wraps your hips while cushioned padding protects your pelvis bone during intense sessions. Pull-to-tighten straps distribute pressure evenly, so you can wear the harness comfortably for extended play. Your partner feels every deliberate stroke as deep, rhythmic penetration rather than awkward repositioning. Explore Pornhub Sextoys for additional attachment options that work with this harness system.
Measure your waist or hips where you'd naturally wear the harness—usually just above your hip bones. If you're between sizes, choose the larger one for comfort without restriction. Cockringshop specialise in products for men and couples, and we stock harnesses that accommodate most body types. A harness that fits snugly but not tightly will stay in place during vigorous thrusting without cutting off circulation or causing discomfort. Remember that the cushioned back panel adds some thickness, so don't size down trying to feel tighter; a secure fit is about confident alignment, not compression.
Step into the harness and position the cushioned back panel against your lower spine. Pull both straps snug around your hips, distributing pressure evenly across your pelvis. Insert your chosen Vac-U-Lock attachment into the vacuum plug until you hear and feel the seal click into place. The snap-front closure lets you detach and reattach without removing the entire harness.
Start with shallow penetration so your partner can adjust to the sex toy's size and sensation. Listen to their breathing and watch their body language to know when to increase depth or tempo. Your hip movements now control the sex toy's angle and rhythm directly. After use, hand wash the harness with gentle detergent and lay it flat to dry completely before storage.
| Feature | Specification | Benefit | Experience |
|---|---|---|---|
| Vacuum Plug | Patented Vac-U-Lock system | Eliminates sex toy movement during penetration | Confidence in every thrust |
| Cushioned Back | Padded neoprene panel | Prevents bruising during vigorous sessions | Comfortable extended wear |
| Adjustable Straps | Pull-to-tighten up to 69 inches | Custom fit maintains sex toy alignment | Secure feeling without restriction |
| Snap Front | Quick-release closure mechanism | Fast attachment swapping mid-session | Seamless sex toy transitions |
Couples exploring strap-on play will love the professional-level stability and confidence this harness delivers. If you've used cheaper harnesses and dealt with sex toys slipping or rotating during sex, the vacuum seal solves that problem completely. Advanced users appreciate the quick-swap capability for switching attachments without breaking rhythm. Beginners benefit from the secure system that prevents embarrassing sex toy slippage when you're still learning technique and positioning.
Skip this harness if you prefer traditional O-ring harnesses or if you already own a large collection of non-Vac-U-Lock compatible sex toys. You'll also need to buy Vac-U-Lock attachments separately; the harness comes with the plug but not the insertable sex toy itself. If your budget is tight, basic harnesses cost less upfront, though they don't offer the same stability during vigorous sessions.
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Tested and quality-checked Every new line we stock is inspected by hand before it goes live — we check the build, the finish, and the materials, and we confirm it is safe and fit for how it will be used. Nothing is used for its intended purpose; it is examined, checked, and re-boxed. What that means for you is simple: you receive a piece we have already vetted, not a guess off a supplier's pallet. See how we test every product → |
Vacuum-based harnesses lock attachments rigidly in place, while traditional O-ring harnesses hold sex toys with friction alone, allowing slight movement and rotation. Vacuum systems eliminate wobbling and keep the attachment perfectly aligned with your thrusts. O-ring harnesses are cheaper and work with any sex toy that fits the ring size, but they require more careful positioning during use. Adam Eve Sextoys includes both styles so you can choose based on your budget and how much stability matters to you.
| Please read — safety first. Put the ring on before you are fully erect and use plenty of water-based lubricant so it slides on without pinching. Keep wear time short — no more than 20 minutes while you are getting used to it, and never fall asleep wearing one. Take it off straight away if you feel numbness, coldness, a change in colour, or any pain, as these mean blood flow has been cut off too far. Never share between partners without cleaning the item first or using a fresh condom. This information is general in nature only and is not medical or professional advice, and does not take your personal circumstances into account. Stop use and speak with a qualified medical professional if you have a relevant health condition, take medication for erectile function or blood pressure, or notice pain, numbness, or discolouration that does not settle. |
Pair this harness with Anal Sex Toys compatible with the Vac-U-Lock system for couples exploring double penetration or varied sensations during partnered play. You can also use it with vaginal or anal attachments depending on your preference and your partner's anatomy. Multiple compatible sex toys let you swap between sizes and shapes mid-session without removing the harness, extending play without interruption.
Doc Johnson makes a full range of adult toys with innovative attachment systems and premium materials. Browse their complete collection for additional harnesses, compatible attachments, and other high-quality sex toys designed for couples and solo users.
Before your first strap-on session, read Shared Strap On Pleasure for practical tips on positioning, communication, and technique with your partner.
Ready to buy with your size sorted? Order the Vac-U-Lock Platinum Supreme Harness with Plug from The Cock Ring Store—genuine, function-tested, and quality-checked. Cockringshop ships discreetly in unmarked packaging so your purchase arrives privately. The specialist store for rings, cages, and male enhancement — discreetly delivered. The Cock Ring Store ships discreetly Australia-wide.
Cockringshop.com.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
1. Major City & Metro Areas (within Australia)
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
2. Rural Areas (within Australia)
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
International Shipping
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order. If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.
Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, cockringshop.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund
We ship same day on all in-stock orders placed before 12pm! Free shipping on all orders above $200.
All of our shipments come in discreet packaging ensuring those nosy neighbours will never know!
We ship our full range of products worldwide with fast dispatch for orders before 12pm Sydney EST!
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