15 Heating Zones: It uses carbon fiber filament far-infrared heating, a large heating area, 5 heating zones, abdomen, knees and waist, abdomen warmth can effectively resist the attack of cold wind, knee warmth can effectively alleviate the coldness of the legs, leg discomfort, etc. Waist Heat-generating area, keeping the waist warm can effectively relieve cold of the lumbar spine, waist discomfort, etc. 2Generates Heat: The carbon fiber filament generates heat, which can reach a temperature of 70C in 30 seconds. 3Three-level Temperature Control: Three-level temperature control, intelligent temperature adjustment, high temperature red 55-70, medium temperature blue 45-60, green low temperature 38-45, long press for 3-5 seconds to start or close. 4Environmental and Comfortable: The pure cotton fabric is environmental and comfortable with high elasticity and comfortable hand feeling. It can be worn on both sides, can be worn on the front and back in turns, can be worn inside or worn alone. 5Washable and Machine Washable: No fear of washing, remove the battery, the power interface is insulated and waterproof, washable and machine washable, it is recommended to use a laundry bag for machine washing.