The Infrared Sauna Wrap PH-2B II is a low-voltage FIR thermal wrap, with 2 simultan¬eously controlled upper and lower body heating zones. The direct heat from the blanket allows for gentle radiant relaxation of the muscles, and complements body shaping systems. Made of Nylon, and covered by a layer of polyurethane fabric with Space Carbon Fiber. With controlled timer and temperature, this easy-to-clean, portable wrap provides a complete sauna experience without having to breathing in hot dry air. You would love to slide inside this wrap after an intense workout to relieve muscle fatigue, or just for simple relaxation.