1Suitable for sports like basketball, football, baseball, volleyball, cycling, running and climbing, etc. 2Relieving the pressure. Builtin silica gel can effectively relieve pressure of patella. 3Internal punched hole, breathable and sweat wicking, comfortable experience. 4Sticking more firmly. The hook and loop fastener is Tshaped ejection hook, strong adhesion, more durable. 5Adapted highquality materials, one size fits all, free adjustment for tightness. Soft and breathable fabric with smooth edges and fine stitches make you wear without any discomfort.