Our warm clothes are made of cotton blend and spandex.Our 28-zone USB electric heating clothes can not only be used for heating in winter, but also have obvious physical therapy effects. Electric heating clothes can help improve blood circulation, enhance metabolism, reduce muscle stiffness, etc., promote blood circulation, maintain health, and provide warmth.In the cold season,the chest,back,abdomen,waist,knees and other parts are usually susceptible to cold injuries. In order to better protect these parts,the heated thermal underwear adds heating elements to these parts,and double heating ensures safety.The jacket and pants have independent temperature control.Note:Power bank not included.