DonJoy Reaction Web Knee Brace
Shock-Absorbing Knee Support for Active Comfort
The DonJoy Reaction Knee Brace is designed to help relieve anterior knee pain and discomfort caused by patellofemoral conditions, mild instability, and overuse injuries. Its innovative elastomeric web design absorbs shock and disperses energy across the knee to help reduce pressure on the patella during movement and activity.
Lightweight and low-profile, the brace moves naturally with the body while providing dynamic support and improved comfort throughout walking, running, sports, and everyday activities. Adjustable straps and an open framework design help deliver a secure fit with enhanced breathability and flexibility.
Dynamic Shock-Absorbing Support for Active Knee Relief
The DonJoy Reaction Knee Brace is designed to help relieve anterior knee pain and improve comfort during movement, exercise, and everyday activities. Featuring an innovative elastomeric web design, this lightweight brace helps absorb shock and disperse energy away from the knee joint to reduce pressure on the patella and surrounding structures.
Unlike traditional rigid knee braces, the Reaction Knee Brace uses a flexible web framework that moves naturally with the body while delivering dynamic support and stabilization. The open design enhances breathability and flexibility, helping users remain comfortable during extended wear and physical activity.
The elastomeric web technology helps distribute forces evenly across the front of the knee to improve comfort during walking, running, squatting, stair climbing, and sports participation. Its low-profile construction fits comfortably under clothing while maintaining freedom of movement and mobility.
Adjustable straps allow users to customize fit and compression for secure positioning throughout activity. The lightweight frame and anatomical design help minimize bulk while providing effective support for active individuals managing patellofemoral pain and mild knee instability.
Key Features
- Innovative elastomeric web design absorbs shock and disperses energy
- Helps reduce pressure on the patella during movement
- Lightweight, low-profile construction for active everyday wear
- Flexible framework moves naturally with the body
- Open design improves airflow and breathability
- Adjustable straps allow customized fit and support
- Supports mobility during sports and daily activities
- Comfortable anatomical design minimizes bulk and restriction
Indications
- Anterior knee pain
- Patellofemoral pain syndrome
- Chondromalacia patella
- Mild patellar instability
- Overuse knee injuries
- Knee discomfort during activity
- Sports and activity-related knee pain
The DonJoy Reaction Knee Brace combines innovative shock-absorbing technology, lightweight comfort, and dynamic support to help users stay active with improved knee comfort and stability.


- Dynamic Support Webbing Absorbs shock and shifts weight to help alleviate knee pain.
- Superior Comfort Open web design and mesh backing allow for breathability.
- Velcro straps on the top and bottom ensure the brace stays in place.
- Lightweight
- Constructed out of elastomer, a blend of neoprene-free rubber materials not made with natural rubber latex.
- Complete Flexibility
- The brace can be worn on the left or right leg and with or without the sleeve.
- Undersleeve Included With Every Brace
Take the measurement of your thigh 6" above your kneecap using a flexible type tape measure. Use the circumference to choose your size.
Note: This product runs small. If you measure between sizes we recommend going up one size for optimum comfort and fit
Great Policies, Real Support
Fast Shipping, Money Back Guarantee on most items, and Easy Exchanges (free return label). Please note, some exclusions and conditions apply for certain products. See full policy details.






