The surround compression effect is upgraded to alleviate ligament soreness. It has good elasticity, and provides body comfort and support during use Shock absorbing silicone ring placed in the open patella area support your knee with enough pressure and less pressure to protect your knee from sports injuries With spring on each side, this knee brace helps your knees stay firmly in the correct position and distributes knee stress during strenuous and strenuous work or sports, reducing the risk of injury Designed with anti-slip silicone strips to ensure your sleeves stay in place and won't slip no matter what you're doing Specifications: Fabric surface layer: nylon, spandex, Inner layer: polyester fiber, Middle layer: styrene-butadiene rubber Applicable people: adult Applicable sports: football, basketball, badminton, running, cycling, mountain climbing, etc. Suitable for thigh circumference: 35-52cm Suitable weight: 42.5-100kg