[New Upgraded Heated Vests] ----- Our men's and women's heated undershirts have a built-in carbon fiber heating element with intelligent overheating protection across the front and back to generate heat quickly and safely. You can quickly enjoy the comfort of warmth even in extremely cold weather.[Control buttons] ----- The control buttons give you the freedom to control the heat generation area. By pressing the smart button on the collar, you can easily control the level of heat for unprecedented comfort.[Lightweight and stylish design] ----- The exquisite lining is anti-static and provides excellent insulation, so you can enjoy comfort and coziness in the fall and winter seasons. With a quality zipper on the front, you can layer this unisex USB heated undershirt over a variety of tops to add a touch of style to a sophisticated look.[MULTIPURPOSE] ----- The Smart Heating Vest Jacket is perfect for winter hunting, fishing, camping, hiking, snowmobiling and more.[Attention Required] ---- Batteries are not included. You can plug in a mobile power supply to power the electric heating jacket when in use.[Product Information]Product Color: Black, Blue, RedFabric: 100% NylonProduct Lining: 100% polyester fiberFilling: Washed CottonThickness Information: ThickSoftness index: softSlimming index: moderateSize: S,M,L,XL,2XL,3XL,4XL,5XL,6XLNote: 1. Due to manual measurement, please allow a slight difference of 1-3 centimeters. 2.Due to the light and screen, please note that slight color difference is acceptable. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store