Heating clothing vest men's hooded nine district heating cotton vest cotton vest double control smart graphene heating cotton clothes 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. Two-control button Three-speed temperature control Front and rear heating, three-speed temperature control, optional partition heating, persistent heating, 9 zones Size S Bust: 102CM Hem: 100CM Shoulder Width: 39.1 Size M Bust: 106CM Hem: 104CM Shoulder: 40.3 Size L Bust: 110CM Hem: 108CM Shoulder: 41.5 Size XL Bust: 114CM Hem: 112CM Shoulder: 42.7 Size 2XL Bust: 118CM Hem: 116CM Shoulder: 43.9 Size 3XL Bust: 122CM Hem: 120CM Shoulder: 45.1 Size 4XL Bust: 126CM Hem: 124CM Shoulder: 46.3