3D KNITTING TECHNOLOGY - Three-dimensional structure of woven, High-precision 3D knitting technology that effective in providing stable pressures to stabilize and support your knee; The copper knee brace also keeps your knee warm and reduces stiffness; they are the best companion for your workouts and daily activities. WIDE APPLICATION - Suitable for many sports like running, jogging, bicycling, hiking, basketball, football, soccer, volleyball, golf, tennis, skiing, weight training, CrossFit and more! The knee sleeves are universal for men and women. ERGONOMIC DESIGN - 360°perfectly fit your kneecap curve for a full range of protection. With high-elastic tight and breathable compression fabric to reduce the pressure and uncomfortable of the knee. The compression knee brace offers optimal muscle support between workouts and during casual everyday activities. "NO-SLIP" DOUBLE GRIP - With our unique Double Silicone Grip, ensuring your knee brace stays in place without sliding down. Non-slip silicone strips and high-elastic fabric for superior comfort, and provides extra reinforcement without sacrificing comfort. WORRY-FREE SHOPPING - 100% after-sales guarantee. Your satisfaction is our pursuit! Please refer to the size chart to purchase. If you are not completely satisfied with your compression sleeves, return them for a full refund or replacement. No questions asked. We stand behind the quality of our products and are confident you will love your knee sleeves.