Features 1、Activates various functions between skin and promotes metabolism. 2、Set the temperature you want to respond to a variety of environments. 3、Vitality restoration: it provides deeper adjustment of physiological functions to avoids sub-health state and restore the vitality. 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. Features: Activates various functions between skin and promotes metabolism. Vitality restoration: it provides deeper adjustment of physiological functions to avoids sub-health state and restore the vitality. Set the temperature you want to respond to a variety of environments. A button to heating, three stall temperature control, intelligent heating. General USB interface, longer service time. Comfortable and breathable, and it's a nice partner for your winter going out. The product can be soaked and washed as a whole, and the power interface is treated with insulation and waterproof. Specifictions: Size: M, L, XL, 2XL, 3XL, 4XL (optional) Color: black, dark green (optional) 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: M: 665mm L: 685mm XL: 705mm 2XL: 725mm 3XL: 745mm 4XL: 765mm Shoulder: M: 465mm L: 480mm XL: 495mm 2XL: 510mm 3XL: 525mm 4XL: 540mm Bust: M: 1.10m L: 1.14m XL: 1.18m 2XL: 1.22m 3XL: 1.26m 4XL: 1.30m Chest: M: 1.12m L: 1.16m XL: 1.20m 2XL: 1.24m 3XL: 1.28m 4XL: 1.32m Recommend Height/weight: M: 1.65m/50-55KG L: 1.70m/60-65KG XL: 1.75m/70-75KG 2XL: 1.85m/80-85KG 3XL: 1.90m/90-95KG 4XL: 1.95m/100-105KG Package size: 350 * 250 * 100mm / 13.8 * 9.8 * 3.9in Package weight: M: 800g / 1.8lb L: 860g / 1.9lb XL: 940g / 2.1lb 2XL: 1000g / 2.2lb 3XL: 1100g / 2.4lb 4XL: 1200g / 2.6lb Note: The product does not include powerbanks. You need to prepare powerbanks. How to Use: Press and hold the power button for three seconds then you can use it, please note that you need to use the powerbanks when you use it. Cloth Size: We are European size, 2-3 sizes bigger than Asian size. Please choose the correct size according to our size chart and height/weight recommend. 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 Packing List: 1 * Heating Coat Package List 1 * Heating Coat