Unique three-layer construction; first layer is Hydrolon terry which wicks moisture away from skin to keep you dry and comfortable. Perforated Hypolan blend middle layer is comfortable, cushioned and breathable, provides light compression which helps counteract tissue swelling. Durable nylon outer layer retains body's own heat, to naturally increase blood flow to damaged or painful joints and muscle to help encourage healing and pain relief. Plush terry lined, wrap-around style. Support and compression without limiting motion. Larger thumb opening, easy to self-apply. Affordable, long-wearing, lightweight, go anywhere support. Provides firm yet comfortable support. Antimicrobial.