Suitable for various scenes: thermal vest to help you through the winter easily. Ideal for outdoor activities such as snowmobiling, motorcycling, mountaineering, camping, hiking, skiing, fishing, hunting or office daily and business activities. Suitable for autumn and winter use. 1. Integrated heating module. smart heating 2. Waterproof, safe and easy to wash process design 3. Infrared heating, no harmful radiation, stable performance, soft and comfortable Intelligent temperature control, washable, safe and non-radiation, far-infrared heating, no hidden dangers of contact, thin and close-fitting, warm and comfortable, powered by charging treasure, anti-drilling velvet technology, long battery life, energy-saving design. 2 Controls----- Dual control buttons allow you to control the heating zones freely, one button controls the 2 heating zones on the front, and the other button controls the 2 heating zones on the back. By pressing the smart button on the stand collar heated vest, you can easily control the heating level, bringing you an unprecedented comfort experience. -----Exquisite inner lining with anti-static and excellent heat dissipation function to maintain unrestricted comfort and comfort in autumn and winter. With a premium zipper on the front, you can layer this unisex USB heated vest over a variety of tops for a stylish addition to a sophisticated look. ----- The smart heated vest jacket is perfect for hunting, fishing, camping, hiking, winter snowmobiling. Size S Bust: 102CM Hem: 100CM Shoulder: 42.5 Size M Bust: 106CM Hem: 104CM Shoulder: 44 Size L Bust: 110CM Hem: 108CM Shoulder: 45.5 Size XL Bust: 114CM Hem: 112CM Shoulder: 47 Size 2XL Bust: 118CM Hem: 116CM Shoulder: 48.5 Size 3XL Bust: 122CM Hem: 120CM Shoulder: 50 Size 4XL Bust: 126CM Hem: 124CM Shoulder: 51.5