DescriptionThis heating vest is made of premium material. Soft, warm fabric inside, comfortable and skin-friendly. Heat-resistant, wear-resistant and can do quick heating. With USB socket, it is easy to use. Suitable for: clothes, vests, underwear, etc.Features- Color: Black. - Material: Polyvinyl alcohol fiber, corduroy, diving fabric. - S Size: Applicable height: 150-155cm/59.05-61.02inch; shoulder width: 34cm/13.39inch; length: 58cm/22.83inch; bust: 90cm/35.43inch; weight: 70-80catty. - M Size: Applicable height: 155-160cm/61.02-62.99inch; shoulder width: 36cm/14.17inch; length: 60cm/23.62inch; bust: 94cm/37inch; weight: 90-100catty. - L Size: Applicable height: 160-165cm/62.99-64.96inch; shoulder width: 38cm/14.96inch; length: 62cm/24.41inch; bust: 98cm/38.58inch; weight: 110-120catty. - XL Size: Applicable height: 170-175cm/66.93-68.89inch; shoulder width: 41cm/16.14inch; length: 64cm/25.19inch; bust: 102cm/40.16inch; weight: 125-135catty. - 2XL Size: Applicable height: 175-180cm/68.89-70.87inch; shoulder width: 43cm/16.93inch; length: 66cm/25.98inch; bust: 106cm/41.73inch; weight: 135-145catty. - 3XL Size: Applicable height: 180-185cm/70.87-72.83inch; shoulder width: 45cm/17.72inch; length: 68cm/26.77inch; bust: 110cm/43.31inch; weight: 150-160catty. - 4XL Size: Applicable height: 185-190cm/72.83-74.80inch; shoulder width: 47cm/18.5inch; length: 70cm/27.56inch; bust: 114cm/44.88inch; weight: about 165catty. - Not afraid of washing, as long as new, practical insulation and waterproof treatment of power interface. - Heat storage and lock temperature, an artifact of cold resistance in autumn and winter. - The far-infrared carbon fiber filaments generate heat without harmful radiation. The heating zone is designed for the cold part of the back and abdomen, and the heat is more obvious. - Optimum fabrics are bright in color, durable and washable. - By heating the temperature of the carbon fiber filaments, evenly dispersed to the shoulders of the human body can feel the far-infrared heat compress effect.