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Bionic Knee Brace

DonJoy Performance

Maximum support for MCL, LCL, and meniscus injuries with padded bilateral hinges and open patella buttress for added knee stability. Bilateral polycentric hinges stabilize against lateral forces and prevent hyperextension. Breathable 4 mm neoprene and ergonomic wraparound design provide comfort with a secure fit for athletes and active adults.

Recommended for:

  • MCL and LCL Instabilities
  • Knee Hyperextension
  • General Meniscus Support
Only %1 left
SKU
DP151KB04-X
Special Price $77.99 Regular Price $86.99
On Sale 10% Off Save $9.00
DonJoy Performance Knee

Find the Right Fit:

  1. Stand with feet shoulder-width apart, knees slightly bent, leg muscles gently flexed.
  2. Place measuring tape flat against the skin (not tight). Measure leg circumference at:
    • 6 inches above kneecap
    • Center of kneecap
    • 6 inches below kneecap
  3. Use chart to find your size. If you land between sizes—or if thigh and calf measurements suggest different sizes—choose the larger option.

A correctly sized brace will feel comfortably snug and supportive without being excessively tight.

Size Thigh Knee Center Calf
S 15.5"-18.5" (39-47cm) 13"-14" (33-36cm) 12"-14" (30-36cm)
M 18.5"-21" (47-53cm) 14"-15" (36-38cm) 14"-16" (36-41cm)
L 21"-23.5" (53-60cm) 15"-17" (38-43cm) 16"-18" (41-46cm)
XL 23.5"-26.5" (60-67cm) 17"-19" (43-48cm) 18"-20" (46-51cm)

Attention Medicare Patients

Bionic Knee Brace callout graphic Bionic Knee Brace callout graphic

Features and Benefits:

  1. Polycentric Hinges

    Bilateral polycentric hinges protect knee ligaments from lateral forces and hyperextension
  2. 4 mm Perforated Neoprene

    Optimal balance of firm compression, therapeutic warmth, and breathability
  3. Adjustable Thigh & Calf Straps

    Increases ligament stability with secure, customizable compression that adapts to movement
  4. Open Hex Buttress

    Open hex foam buttress stabilizes the kneecap, relieves pressure, and supports natural movement
  5. Open Popliteal

    Improves breathability and comfortable fit behind the knee
  6. Reflective Details

    Enhanced visibility in low light conditions

Is this brace right for me?

The DonJoy Performance Bionicâ„¢ Knee Brace is designed for athletes and active adults who need maximum support and confidence during recovery or sport. Part of the BIONICâ„¢ series, trusted by top athletes, this wraparound style brace features bilateral polycentric hinges to stabilize the knee against lateral forces and an open hex buttress for targeted patella support. The 4 mm perforated neoprene retains heat for recovery yet remains breathable for comfort during activity. Fully adjustable straps provide compression and prevent slipping. Ergonomic design makes it easy to wear for extended periods.

The DonJoy Performance Bionicâ„¢ Knee Brace helps prevent:

  • Hyperextension
  • Provides maximum support for the MCL and LCL
  • Supports meniscus injuries

This brace is ideal for sports involving cutting, jumping, and sprinting.

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Product Questions

I'm a polio patient (1952) have a hyper extended knee due to loss of muscle mass back of lower leg. I need a stop to allow me to put weight on my leg and not have it lock in a hyper extended condition. Brace migration is an issue with loss of muscle condition. I feel I need a moderate to high support brace. Any help on recommending a brace.
Question by: Frank on Jul 13, 2016, 5:30 PM
The DonJoy Performance Bionic Knee Brace has a hard stop built into it to prevent hyperextension, and support knee instability with lateral and medial protection.
Answer by: Admin on Jul 13, 2016, 5:30 PM
should measurements be taken while in a relaxed seated position on a table or with knee flexed slightly? measurements are different and fluctuates between ordering a large or XL brace
Question by: jeff on Aug 20, 2016, 6:50 AM
For measurements, stand with your legs shoulder-width apart, legs slightly bent and leg muscles contracted. Measure up six inches from the center of your knee with a tape measure. Measure the circumference of your thigh at the 6-inch mark. Then measure down six inches from the center of your knee with a tape measure. Then measure the circumference of your calf at the 6-inch mark.
Answer by: Admin on Aug 20, 2016, 6:50 AM
Let me know whether I can wear the Bionic Knee Brace under the pants?
Thanks. Peter
Question by: Peter on Aug 17, 2016, 8:10 AM
The DonJoy Performance Bionic Knee Brace is a low profile brace but it does have protective hinges. You can wear the brace under pants as long as the pants have enough leg room to accommodate the brace.
Answer by: Admin on Aug 17, 2016, 8:10 AM
I wear the Don Joy armor knee brace for my torn ACL. And it slips and slides and is very un comfortable. Would this be good to wear for more comfort?
Question by: Hunter waggener on Mar 20, 2016, 3:08 PM
The Bionic Knee does not provide ACL specific support. For ACL support we recommend the Bionic Fullstop Knee Brace https://www.donjoystore.com/bionic-fullstop-knee-brace
Answer by: Admin on Mar 20, 2016, 3:08 PM
I recently tore my MCL, PCL and my miniscus in my left knee. Dr is going to clean up my miniscus orthoscopically, no major surgery being done and would like to know what knee brace best suits me for daily use. I work outside with normal bending during the day.
Question by: SB on Oct 13, 2015, 8:00 AM
The Playmaker would be a good choice. The brace will provide good general support for all of those injuries. https://www.donjoystore.com/donjoy-playmaker-ii-knee-brace
Answer by: Admin on Oct 13, 2015, 8:00 AM
DonJoy Performance Knee

Find the Right Fit:

  1. Stand with feet shoulder-width apart, knees slightly bent, leg muscles gently flexed.
  2. Place measuring tape flat against the skin (not tight). Measure leg circumference at:
    • 6 inches above kneecap
    • Center of kneecap
    • 6 inches below kneecap
  3. Use chart to find your size. If you land between sizes—or if thigh and calf measurements suggest different sizes—choose the larger option.

A correctly sized brace will feel comfortably snug and supportive without being excessively tight.

Size Thigh Knee Center Calf
S 15.5"-18.5" (39-47cm) 13"-14" (33-36cm) 12"-14" (30-36cm)
M 18.5"-21" (47-53cm) 14"-15" (36-38cm) 14"-16" (36-41cm)
L 21"-23.5" (53-60cm) 15"-17" (38-43cm) 16"-18" (41-46cm)
XL 23.5"-26.5" (60-67cm) 17"-19" (43-48cm) 18"-20" (46-51cm)

How To:

Bionic Knee Brace

Brace Application Guide

Loosen both straps so the brace lays flat, then place it over the knee and center your kneecap in the hex-shaped patella opening. Secure the top and bottom hook panels so the brace sits smoothly against the leg, then confirm the bilateral hinges are aligned evenly along the sides of the knee. Thread the stretch webbing straps through the D‑ring tensioners and tighten evenly to your preferred level of support.

To receive maximum therapeutic support, the knee brace should feel snug and supportive without being excessively tight or restricting circulation.

Download product details.

Bionic Knee Brace

Product Care

Hand wash in warm water using mild soap. Rinse thoroughly. AIR DRY.

Note: If not rinsed throroughly, residual soap may cause irritation and deteriorate material.

 
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