Important sizing instructions — measure before you buy: 1. Stand upright with your leg straight (do not bend the knee). 2. Locate the center of the kneecap. 3. Measure the thigh circumference 4 inches (10 cm) above the knee center. 4. Compare your measurement with the size chart to choose the correct size. Key benefits Targeted knee protection: Ergonomic design follows natural knee movement to protect and stabilize the joint during activity without restricting motion. Lightweight and comfortable: Super-light construction reduces bulk so you can move freely while keeping the knee supported. Stay dry during workouts: hDc Moisture Management Tech wicks away sweat to help you stay cool and comfortable during extended exercise. Injury prevention and recovery support: Helps prevent common training injuries, reduces stiffness in muscles and joints, provides warmth, and offers effective shock absorption while promoting blood circulation. Features and performance Ergonomic fit that supports movement and alignment of the knee. Moisture-wicking technology for sweat control and comfort. Shock-resistant padding to reduce impact and aid joint protection. Warming effect to ease stiffness and assist recovery by improving circulation. Compatibility and use Designed for outdoor and active sports where knee protection and mobility are important. Suitable for athletes and active users during training, recreational sports, or daily activities that stress the knee. Practical use scenarios Trail running or hiking: Reduces impact on uneven terrain while keeping the knee warm and supported. Cycling or mountain biking: Protects the knee from repeated pedaling stress and occasional impacts. Strength training and agility drills: Helps prevent strain during squats, lunges, and plyometric movements while allowing full range of motion. What to check before purchasing Measure correctly following the instructions above and choose the matching size from the product size chart to ensure a secure, effective fit. If you use custom braces or medical devices, confirm compatibility with those devices before use. Why customers choose this knee protector Combines ergonomic support, lightweight comfort, moisture control, and impact protection to reduce injury risk and improve comfort during activity. Practical for a wide range of outdoor and training applications where knee mobility and protection are required.