You need a good knee joint. Wearing copper Knee Support for Arthritic Knees can exert pressure on the knee and effectively prevent meniscus injury, ligament injury, and cartilage injury.-Why is our knee compression support useful to you? 60% copper fiber cloth+40% spandex. Pain relief function is superior to ordinary nylon fabrics. And our knee brace are not as thin as others, with three coins thick, keeping them warm without affecting the comfort of exercise, and providing optimal compression. 3D weaving process, it is soft ,breathable and quickly wicks away sweat. Professional test: after two hours of continuous exercise in the gym, the sleeves barely slipped. You will love the feeling of athletics with it.-Who can use our knee compression support? Basketball players, tennis players, baseball players and golfers, - don't worry about muscle cramps and fatigue when training. Outdoor sports enthusiasts and athletes - you can train in the gym and field for longer and perform better. People with knee problems - prevent and alleviate muscle pain and knee pain-Use time You can choose to use it during exercise to prevent knee injuries and take off your body after exercise. For joint injuries, you can use it when you need to use your knees and take off when you take a break. You can also ask your doctor for better advice. Hand wash in cold water and air-dried recommended-How do I determine the size? To find your correct size, simply measure your knee circumference, 5 Inches above your Kneecap.Then compare the product sizes in the image to find the right size for yourself. What are you waiting for? Click toadd to cart.Legal DisclaimerPlease note: Our copper knee compression sleeves are not fitted with a spring mount. They rely primarily on compressive and copper fiber cloth to exert a constant pressure on the knee joint, providing muscle support during exercise and leisure activities. So its support is not as big as other knee supports. But please don't doubt it, it will still protect your knees and go all out. Also if you choose the wrong size, it will scroll down or have little support and compression. Please feel free to contact us to get the right size. If you don't like it, you can also ask us for a refund.