Ten District New Men's Charging Heating Vest V-neck USB Smart Constant Temperature Warming Heating Vest Electric Heating Cotton Coat Keeps the body warm: 10 carbon fiber heating elements generate heat in the central area of the body (back and stomach). 3 heat settings (high, medium, low) can be adjusted with the push of a button. 2 seconds fast preheating, no need to wait, intelligent heating. Material: Material Composition: 100% Polyester, Lining Material: 100% Polyester. Heat Sheet: Carbon Fiber. The lightweight insulation allows you to wear it any way you want, with unrestricted movement and optimal heating. protection and safety. USB Port Power: This is using the USB port, and the USB plug is compatible with most power banks on the market. (Batteries not included). Lining material: 100% polyester. Thermal sheet material: carbon fiber Size Chart M, Bust: 98cm, Shoulder Width: 35cm, Length: 59cm L, Bust: 102cm, Shoulder Width: 36cm, Length: 61cm XL, Bust: 106cm, Shoulder Width: 37cm, Length : 63cm 2XL, Bust: 110cm, Shoulder Width: 38cm, Length: 65cm 3XL, Bust: 114cm, Shoulder Width: 39cm, Length: 67cm 4XL, Bust: 118cm, Shoulder Width: 40cm, Length: 69cm5XL, Bust: 122cm, Shoulder Width: 41cm, Garment Length: 71cm6XL, Bust: 126cm , Shoulder Width: 42cm, Garment Length: 72cm7XL, Bust: 130cm, Shoulder Width: 42cm, Garment Length: 73cm Remarks: 1. Due to manual measurement, please allow a little There is a 1-3 cm difference. 2. Please note that slight color difference should be acceptable due to light and screen. Package includes: 1 x Men's vest (without battery) Note: Asian size is 3 sizes smaller than European size, so please check the size chart and choose the right size for you before buying