Atraumatic padded knee pads, centered on a thickened foam pad, are impact resistant to provide optimal kneecap protection, their heavy duty, shockproof, prevent knees from any damage while kneeling, dancing, skating, biking, running, horseback riding, wrestling, hiking Scratches, or playing tennis, football, basketball, etc. Medical grade performance, easy to put on and instantly warms your knees and provides significant relief from arthritis/joint strain/tendonitis pain Proper compression knee sleeves provide extra support and comfort, effectively increase blood circulation, reduce knee joint fatigue and joint strain, enhance sports performance and improve sports confidence Super breathable and comfortable strap, made of high quality cotton, spandex and sponge shell with reinforced stitching, super light and durable. Features excellent breathability to absorb sweat, keeping your knees dry and comfortable all day long One size fits best: 1 pair included, unisex. One size, supporting circumference between 37-50cm / 14.5" - 19.6" (measured above 10cm from kneecap). This sleeve is highly elastic, contoured to prevent bunching or slipping, and more importantly, it maximizes your flexibility and strength in your knees