1、Activates various functions between skin and promotes metabolism. 2、Vitality restoration: it provides deeper adjustment of physiological functions to avoids sub-health state and restore the vitality. 3、Set the temperature you want to respond to a variety of environments. 4、A button to heating, three stall temperature control, intelligent heating. 5、General USB interface, longer service time. 6、Comfortable and breathable, and it\u0027s a nice partner for your winter going out. 7、The product can be soaked and washed as a whole, and the power interface is treated with insulation and waterproof. Upgraded heating elements generating heat from the abdomen and back to make you feel warm in 360 degrees. One button for 3 heating settings, made of soft skin-friendly material which ensures smooth and comfortable feeling. Specifications: Size: XL Color: black Main material: polyester Interface: USB Temperature shift: Warm: 45-55 Degrees (Red Light) Comfort: 35-45 Degrees (Blue Light) Energy saving: 30-35 Degrees (Green Light) Length: XL: 705mm Shoulder: XL: 470mm Bust: XL: 1.16m Chest: XL: 1.18m Recommend Height/weight: XL: 1.75m/70-75KG Package size: 300 * 200 * 100mm / 19.7 * 11.8 * 3.9in Package weight: XL: 565g / 1.2lb EU Size S = Asian size XL EU Size M = Asian Size 2XL EU Size L = Asian Size 3XL EU Size XL = Asian Size 4XL EU Size XXL=Asian Size 5XL EU Size XXXL=Asian Size 6XL EU Size XXXXL=Asian Size 7XL 1 * Heating Vest