This rug combines the benefits of infrared technology with outstanding fit and quality to optimize performance and recovery. Its waterproof, 1200D polyester outer is lined with ceramic fabric that reflects body heat back as soothing far infrared rays. These rays activate the bodys natural healing process and increase circulation to relieve soreness and maximize comfort. Our ceramic minerals result in superior far infrared emissivity that won't wash out. V-Front Closure, Surefit Neck Design, dual leg arches, and three cross surcingles ensure secure fit and unrestricted movement.