Give your knees a little more support with the Nike Pro Open Patella Knee Sleeve 3.0. It slips on easily and helps facilitate blood circulation to the area. Padding and compression around the hole in the knee cap area provides some relief from common knee injuries. Features: With dri-fit technology Light compression helps warm muscles and support joints Supportive gel padding where it's needed most Articulated gusset at back of knee helps prevent bunching Durable material with breathable mesh in high-heat areas Easy pull-on design Fabric: 35% polyester, 29% neoprene, 24% thermoplastic rubber, 9% spandex, 3% nylon