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FlexCross Adjustable Knee Support Brace

FlexCross Adjustable Knee Support Brace

Regular price $14.99
Regular price $49.99 Sale price $14.99
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FlexCross
FlexCross // Knee Support System

Your knee doesn't get to decide your day.

Four spring-rib supports. Dual X-strap tensioning. An open-patella build that stabilizes the joint without choking off the movement.

Open-patella build4× spring ribsDual X-strap lockS–XXL
The fit, in motion
Engineered fitVentilated meshNo-slip strap lockRehab & performance rated
The problem with sleeves

Compression isn't stabilization.

  • 01
    Tube sleeves stretch out by lunch.

    One tension setting, and it only loosens.

  • 02
    Full coverage means full pressure on the kneecap.

    Closed sleeves push straight down on the patella.

  • 03
    FlexCross tensions where you need it.

    Dual X-straps dial in pressure while the patella window stays clear.

Strap down. Lock in.
Product schematic

Four parts. One system.

Every panel has a job — nothing here is decorative.

01 02 03 04
01

Open patella window

Clears the kneecap while the joint still gets full lateral support.

02

Four spring-rib supports

Rigid enough to stop wobble, flexible enough to bend with you.

03

Dual X-strap tensioning

Hand-tighten to your own pressure. It doesn't slide down.

04

Ventilated mesh knit

Built to disappear under a full day of wear.

Built for both directions

Coming back. Or not slowing down.

Comeback

Post-injury & recovery

Stable enough to trust on stairs, open enough to not fight rehab range of motion.

Competition

Mid-match & mid-set

Holds tension through direction changes — no halftime re-adjustment.

Built for the movement
Everyday

Stairs & long shifts

Low-profile enough to wear under pants for a full day on your feet.

Get this part right

Measured wrong, fits wrong.

Wrap a tape 4 inches above the center of your kneecap. That number is your size.

SizeInchesCM
S9.06"–10.04"23–25.5
M10.24"–12.01"26–30.5
L12.20"–14.17"31–36
XL15.35"–16.54"39–42
XXL16.93"–19.29"43–49
⚠ Between sizes? Size up — straps tighten further than they loosen.
Measure once. Fit right.
Field notes

On court. Off duty.

On court
Everyday wear
Before you ask

Objections, answered.

Straight answers. No hedging.

No. The crossing X-pattern bites into itself under load instead of slipping like a single loop strap. Tighten once and it holds through a full session.

Yes. The open-patella cutout, four spring-rib supports, and adjustable compression are the same mechanisms used in bracing for meniscus, ACL/MCL/PCL, arthritis, and tendinitis.

Wrap a tape 4" above the center of your kneecap and match it to the chart above. Between sizes? Size up — straps have more room to tighten than loosen.

Yes — the mesh is ventilated specifically so it doesn't trap heat under pants during a work shift or a long walk. Most people forget it's on by hour two.

From people who wear it

2,384 reviews. One recurring theme.

4.8
2,384 verified reviews
5 star
74%
4 star
18%
3 star
5%
2 star
2%
1 star
1%
FlexCross

Stop negotiating with your knee.

Four spring-rib supports. Dual X-strap tensioning. One decision.

Open-patella build · S–XXL · Mesh-knit construction