The KBBoy Silicone Full Body Harness is an affordable, full-body bondage harness that restrains the wearer from shoulders to thighs. It’s a great alternative to pricey leather gear, but also offers its own unique visual appeal.
Available from Juliet Toys for around $230, with free worldwide shipping and a customization service available if the standard sizing doesn’t fit, this is one of the more interesting full-body BDSM harnesses I’ve tested recently. And you can use the coupon code “sextoydb” for 15% off. Bargain!
KBboy — and no, I haven’t a clue what the KB stands for — also offers a whole range of silicone bondage gear that’s worth checking out if a full-body harness isn’t on the cards for you. While this harness uses traditional buckles, magnetic locking pins are available on some of the smaller pieces in the range.
So, is silicone actually a good material for bondage gear? And is this just a cheaper leather alternative, or something worth considering in its own right?
Let’s get into it.
Table of Contents
First Impressions: Heavy, Glossy, and Surprisingly Premium
From the unboxing alone, you know this is going to be a superb quality product because it weighs a ton. There’s a big chunk of silicone in here, leaving you with something that feels very durable, strong, tear-resistant, and secure. The silicone is cut cleanly, with a uniform glossy finish on the outside, and overall it feels like exquisite craftsmanship.
This is not flimsy costume gear. It has proper weight, proper shine, and that immediate “this is going to last” feeling.
Custom Sizing Is a Big Win
Before getting into the specifics, I want to call out the incredible level of customization offered here. You can, of course, opt for the standard sizing if it’s suitable. It’s fairly forgiving, designed to fit approximately:
- Chest circumference: 90 to 100cm / 35 to 40 inches
- Waist: 86 to 94cm / 34 to 37 inches
- Upper thigh: 32 to 56cm / 12.6 to 22 inches
If the standard sizing works for you, delivery should be fairly quick; around two weeks. But if you need something a little larger, or just something different from the standard sizing, you can opt for custom sizing for about $20 extra. That adds roughly another week to production, and they’ll tell you exactly what measurements to send.
For a full-body bondage harness, $230 to $250 is remarkably affordable. I would normally point to leather options as an obvious alternative, but honestly, finding an equivalent leather full-body harness is difficult because the price gets silly very quickly. You’re probably looking at somewhere in the $1,000 to $2,000 range, and at that point it becomes more of a bespoke leatherworking project than an off-the-shelf purchase.
A useful comparison might be the Nothosaur Yrdeno heavy-duty leather strap-on harness. It’s much thinner, only covers the lower body, and even that comes in around $200 from a budget brand. So for the amount of material and hardware you’re getting here, the KBBoy harness feels like great value.
Design and Materials
Aesthetically, the silicone has a shiny outer layer and a slightly duller inner layer. Each strap is around 1.5 inches wide, giving the whole harness a really impressive visual weight. The metal buckles are chunky and strong, with thick holes that offer a secure fit. Some of the rivets and metal hardware are even branded, which is a nice detail and helps the whole thing feel more finished.
The thickness doesn’t just look good, either. It feels good. The straps are around 1.5 to 2mm thick, and because they’re soft silicone rather than stiff leather or cheap PVC, they don’t dig into your skin. You can tighten them quite securely without worrying that they’re going to bite into you like a drunk ferret.
It feels amazing to be strapped into this. A little cold to the touch at first, but it warms up quickly.
How the Harness Fits Together
In terms of setup, the harness ships in two bags. One bag contains the lower part of the harness, which includes the straps that go around your legs and loop onto the waist belt. The lower body part is entirely optional. The other bag makes up the bulk of the harness, including the upper body and mid-section.
You’ll find:
- Two long straps that go over the shoulders
- A strap for the upper body
- A waist strap around belly-button height
- Lower body thigh straps
- Crotch strap (you can remove this, but the buckles will remain)
The fact that it’s silicone doesn’t really affect the functionality. These are still standard belt buckle-style fasteners, so you can tighten or loosen everything easily.
Putting it on for the first time can be a bit tricky. If you have a friend or partner who can help, that’s definitely easier. Otherwise, it’s still manageable solo, just a bit of a wrestling match.
The easiest way to start is to find the ring with five straps coming off it. That’s the upper body section. Then find the middle two straps, which are the shoulder straps. There’s both a front and rear ring with five straps coming off them, so connect the shoulder straps together first. I prefer to keep the buckles at the rear, but it doesn’t really matter. If you’re dressing solo, you’ll probably want the buckles around the front so you can actually reach the damn things.
I found it easiest to locate the shoulder straps first, ensure they were done up, hoist it on, and then slowly work through the rest. Do it up loosely at first, then tighten each section once everything is in the right place.
Comfort: Surprisingly Wearable for Something That Looks This Intense
Once adjusted correctly, the KBboy Silicone Full Body Harness is impressively comfortable for something that looks so intense. The silicone material is soft and slightly pliable, so it conforms to your body without the break-in period you’d get from stiff leather. The straps hug your curves without pinching or digging in, even when you move around.
It’s supportive, secure, and visually dramatic, but it doesn’t feel punishing to wear. Well, unless that’s specifically the vibe you’re going for.
Important Safety Note: This Is Not for Suspension
This is not a suspension-rated harness. Do not use it to support someone’s full body weight, as you might with a professional suspension harness or climbing-style equipment. It is not designed or rated for that. You can clip things to it. You can attach a leash or cuffs. You can use it for bondage, grip, control, or leverage during sex. You can use it as part of a scene or just as fetish fashion.
But do not suspend anyone from it.
Cleaning and Maintenance
There’s very little maintenance required with a silicone harness beyond giving it a wipe down when needed. Silicone does attract dust, though, and black silicone really highlights that. So don’t be surprised if it picks up every tiny bit of fluff in the room.
You should keep it dry and store it out of direct sunlight. Silicone is inert and body-safe, which is why it’s so commonly used for insertable sex toys like dildos. It’s easy to clean and won’t harbor bacteria in the same way more porous materials can. For storage, I found it easiest to just hang it up in a cupboard.
One minor maintenance note: it’s generally best to avoid silicone lubricants around silicone gear. In theory, high-quality silicone shouldn’t react badly with other silicone products, but silicone-on-silicone can sometimes cause stickiness or surface degradation. It’s just safer to avoid it.
Why Silicone Instead of Leather, PVC, Neoprene, or Latex?
Bondage straps and harnesses are usually made from leather or PVC, including vegan and faux-leather alternatives. Neoprene is fairly popular too, while rubber or latex is rarer. Silicone, though, is very uncommon.
Leather is usually preferred for its premium feel, smell, and durability. I’ll admit, I love leather gear. But I’ve also had issues with it picking up mold in the humid air where I live, so it’s far from perfect. It’s also expensive. PVC is cheap, but weaker. The buckle tongue holes can stretch and rip easily, though it can offer a gorgeous fetish shine that you don’t always get elsewhere.
Neoprene isn’t something I’ve explored much for strict bondage gear. It tends to be more of a fashion material, though it’s easy to style in different colors and textures, which makes it great for masks and similar pieces. Rubber or latex has a whole host of storage issues. In my experience, it can degrade when left in contact with metal, and I’ve never had great luck with latex bondage gear unless it’s something like a big sleep sack.
Don’t get me wrong, I love latex. But it’s a bugger to look after. What’s the difference between PVC and latex?
Silicone offers an interesting alternative. It’s affordably priced, reasonably strong, durable, easy to clean, and has that shiny plastic fetish aesthetic without the usual PVC weaknesses.
Is The KBboy Harness Beginner-Friendly?
If you’re new to BDSM or fetish gear, using a full-body harness might will feel more secure and less risky than improvised rope bondage or multiple separate restraints. Once it’s on, it’s pretty intuitive. You can grab onto the harness straps instead of grabbing the person directly, which can make control and movement feel safer and more comfortable for both of you. Beginners will also appreciate that there are no complicated knots or pressure points to worry about. As long as you don’t overtighten it, it’s basically about as safe as wearing a piece of clothing.
It can be used for light roleplay, bedroom bondage, or just as a fetish fashion piece at a party. It looks great over clothes, or with nothing else at all.
Is It Good for Advanced Players?
Advanced players will probably appreciate the strength, versatility, and compatibility. You can attach cuffs, leashes, and other gear to the harness. It gives you useful grip points, adds visual structure to a scene, and doesn’t require the same level of maintenance as leather or latex.
The silicone also shouldn’t damage latex clothing in the way rougher or sharper-edged materials might, which makes it easier to incorporate into a broader fetish wardrobe. Just remember the big caveat again: not for suspension.
KBBoy Silicone Full Body Harness: Buy or Avoid?
Overall, the KBboy Silicone Full Body Harness is a fantastic addition to any fetish gear cupboard. It works for advanced kinky types, curious beginners, and anyone looking for an affordable alternative to leather bondage gear. In some ways, it may even be better than leather, particularly when it comes to durability, easy cleaning, and maintenance.
It ticks the boxes for aesthetics, strength, comfort, and most importantly, it feels amazing to wear. The fact that you can customize the sizing is really appreciated, especially if you’re on the larger side or just don’t fit neatly into standard-size gear.
It feels like a quality bit of kit that could potentially last a lifetime. And if you’re not convinced on the material, I’d definitely suggest checking out KBboy’s smaller silicone bondage pieces too, because they’re likely to give an equally strong first impression.
For the price, this is bloody impressive. The KBboy Silicone Full Body Harness is one of the best affordable full-body bondage harnesses I’ve tried; it easily makes our list of favorite bondage gear for nearly every session. It looks dramatic, feels secure, is comfortable once adjusted, and offers a practical alternative to leather, PVC, and latex gear.