1Breathable and moisture wicking, protect your knees in all directions and comfortable to use. 2Ergonomic design, prevent sports injuries, metal spring support, high strength bending, strengthen the support. 3Relieve knee pressure, diffuse patella pressure and reduce the aggravation of knee joint injury. 4Open patella design for support and compression around the kneecap and tendon areas to heal knee injuries. 5Kneepad up and down add non-skid strip, can effectively prevent kneepad in motion up and down displacement.