Ergonomically designed copper for arthritis pain and support, with the best compression technology, can achieve comprehensive protection. Slow shock and decompression, disperse knee pressure, improve blood circulation, protect knee from injury. . High Copper Content : 60% Copper ion fiber with high copper content and tested by laboratory composition analysis. Help relieve swelling and muscle soreness; The copper knee sleeve adopts a new type of 3D weaving technology and is easy to dry, air-permeable, and sweat-absorbing. . Designed for everyday use and outdoor activities- The s for knee pain women and men can help you recover faster ,help relieve arthritis knee pain. Enjoy the fun of sports! It is ideal for work that requires regular knee use, such as mountaineering, running, ball sports, cycling, and Gym exercise(including the elderly). . NoN-SLIP Grip: After two hours of continuous exercise in the gym, the sleeves barely slipped. You will love the feeling of athletics with our knee sleeves. But please be sure to follow our size chart instead of your habits. Latex / Silicone people allergic caution.