•Classic Style Design: Warm, comfortable undershirt will ensure you don't lose excess heat and enjoy the warm comfort•Multifunctional: It is soft, waterproof, and windproof so that you are not limited to outdoor sports without losing elegance•USB charging, and safe washing: it is easy to carry. Connect 5V Power Bank (Power Bank is Not Included)•Three temperature control: high temperature, medium temperature, and low temperature three modes of adjustment, heating convenient•Warm Protection: Our heated vest can warm your body gradually to promote blood circulation and relieve stiff muscles caused by cold winter•Lightweight: The heated vest is lightweight which can make it easier for you to go through the whole winter without wearing bulky clothesSpecifications:•Fabric: Polyester•Lining: polyester fiber•Three temperature control: warm gear 45°C, comfort gear 35°C, energy-saving gear 25°C•Operating temperature range: about -5°C to 40°C•Waterproof rating: (IP)3Size (cm): •L: length 65, chest 110, shoulder width 41.5, hem 102•XL: length 67, chest 114, shoulder width 43, hem 106•2XL: length 69, chest 118, shoulder width 44.5, hem 110•3XL: length 71, chest 122, shoulder width 46, hem 114•4XL: length 72.5, chest 128, shoulder width 48, hem 120•5XL: length 74, chest 134, shoulder width 50, hem 126•6XL: length 75, chest 140, shoulder width 52, hem 132•7XL: Length 76, chest 146, shoulder width 54, hem 138Note: Because the size is manually measured, there is a 1-2cm error that is normal. Package included:•1 x Heated Vest•Other items not included