Feature:1. There is silicone ring cushioning pressure on the knees, spring support on both sides, multiple strengthening joint support, reducing knee load.2. 3D high-elastic fabric gives you more than just comfort, but also a gradient-level pressure on your knee load.3. The inner side has a silicone strip anti-slip design, so you dont have to worry about slipping during the movement.4. Ergonomically designed to promote correct knee movement as to prevent injury.5. Suitable for basketball, tennis, volleyball, jogging, walking, hiking, etc.Specification:Product Name: Sports knee padsMaterial: nylon, spandex, siliconDesign highlights: silicone gasket on the knee and spring support on both sidesProtective part: knee jointNon-slip: anti-slip silicone ring on the inside to prevent slippingSize Information:Size Length Upper Circumference Lower Circumference Suitable for WeightM 28cm 34-54cm 30-50cm 50-65kgL 28cm 36-58cm 32-54cm 65-75kgXL 28cm 39-62cm 34-58cm 75-100kg10cm=3.94inchPackage List:1 x Knee Brace