Engineering
Four systems.
One steady knee.
Most sleeves do one thing — squeeze. This one layers four, so support goes exactly where your knee needs it.
1
2
3
4
Tap a number to see what it does
01
Precision compression dial
Turn to tighten, pull to release. Dial in more support for the stairs, back it off at your desk — all without taking the sleeve off or re-wrapping a strap.
02
Patella gel pad
A soft silicone ring that sits around the kneecap rather than on it, cushioning and spreading pressure across the surrounding tissue.
03
Dual spring stabilisers
Flexible steel coils down both sides give lateral support while still letting the knee bend naturally. Nothing rigid, nothing locked.
04
Silicone grip bands
Top and bottom bands hold the sleeve exactly where you put it. No creeping down the calf, no bunching behind the knee at hour six.
Sound familiar?
It starts as a small hesitation
A slight tug. A moment of not quite trusting the leg. Nothing you'd mention to anyone — but you notice it in the same handful of moments every day.
↑Going up stairs
⇡Standing up after sitting a while
⟳Turning quickly or on uneven ground
⏱Long days on your feet
So you adjust. You take the stairs slower, shift your weight, plan routes around hills. And the more carefully you move, the more your knee runs your day.
The goal isn't to lock the knee down. It's to give it enough support that you stop thinking about it.
The design choice
Rigid braces don't get worn
A hard brace holds the knee still, and that's exactly the problem — it's hot, it's bulky, it won't fit under jeans, and it ends up in a drawer after the second week.
The thin elastic sleeve has the opposite problem: comfortable enough to wear, but it rolls down and offers almost nothing once it stretches out.
PeakFlex sits between the two — adjustable support that flexes with the joint instead of fighting it, in a profile slim enough to wear every day.
Supports, doesn't immobilise
Spring stabilisers bend with the knee instead of locking it straight.
Adjustable, not fixed
The dial lets you change compression as the day changes.
Slim under clothing
Low-profile enough to disappear under trousers and jeans.
Stays where you put it
Silicone bands grip the leg so it doesn't slide down mid-walk.
How to wear it
On in under a minute
No straps to wrap, no velcro to line up, no second person required.
1
Slide it on
Pull the sleeve up the leg until the gel ring sits centred around your kneecap. The dial should face forward and slightly outward.
⏱ 20 seconds
2
Dial in your support
Turn clockwise until it feels supportive but comfortable. You should be able to bend fully with no numbness or tingling. Pull the dial out to release.
⏱ 15 seconds
3
Get on with your day
Walk, work, climb stairs, run errands. Adjust the dial whenever you want more or less — no need to take it off to do it.
✓ Done
The difference you feel
Against a basic elastic sleeve and a rigid brace.
| PeakFlex | Basic sleeve | Rigid brace | |
|---|---|---|---|
| Adjustable compression | ✓ | ✕ | ✕ |
| Patella gel pad | ✓ | ✕ | ✓ |
| Side stabilisers | ✓ | ✕ | ✓ |
| Stays put all day | ✓ | ✕ | ✓ |
| Bends with the knee | ✓ | ✓ | ✕ |
| Slim under clothing | ✓ | ✓ | ✕ |
| Comfortable for 8+ hours | ✓ | ✕ | ✕ |
20,000+ knees supported
What people say after a few weeks of daily wear.
4.8
★★★★★
Based on 3,140 verified reviews
✓ Verified
★★★★★
Steadier on the stairs
It fits comfortably and gives my knee noticeably more stability when I walk. I notice the difference every day, especially on stairs.
Martina K. · size M
✓ Verified
★★★★★
I forget I'm wearing it at work
I wear it most days at work and I'm surprised how comfortable it is. It hardly slips at all and still feels fine after several hours on my feet.
Thomas B. · size L
✓ Verified
★★★★★
The dial is the whole point
I can set it tighter for a long walk and loosen it at my desk without taking it off. Every other brace I've owned was one setting, take it or leave it.
Jürgen H. · size L
✓ Verified
★★★★★
Doesn't slide down
Finally a sleeve that doesn't constantly slide down my leg. The material feels high quality and flexible, and it's barely visible under my trousers.
Petra M. · size M
✓ Verified
★★★★☆
Sized up, much better
First one was too loose for me. Emailed them and the right size came free, no return postage. Four stars only because I had to do it twice.
Daniela V. · size XL
✓ Verified
★★★★★
Supportive without being stiff
It feels stable without being too rigid — that's exactly what I was looking for. I can still move properly in it, which my old brace never allowed.
Karl D. · size L
$59.99$159.90
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