This kind of electric vest is especially suitable for cold environment. It can heat quickly， control temperature in three grades， keep warm for a long time， easy to wash， safe and worry free. It is the same type for men and women， and can keep warm in winter.Features:Multi heating plates， more scientific heat source， scientific distribution design.Multi major fever areas， scientific distribution in important organs， the whole body is surrounded by warmth.Three gears， quick heating， carbon fiber heating wire heating rapidly.Long lasting heat preservation， safe and low pressure.It can be worn by both men and women， suitable for most body types.Specifications:Material: cottonSize: S，M，L，XL，XXL，XXXL (optional)Type: fever in 7 areasS:Apply the height: 150-155Shoulder breadth: 34Length: 58Chest circumference: 90The recommended weight: 70-80M:Apply the height: 155-160Shoulder breadth: 36Length: 60Chest circumference: 94The recommended weight: 90-100L:Apply the height: 160-165Shoulder breadth: 38Length: 62Chest circumference: 98The recommended weight: 110-120XL:Apply the height: 170-175Shoulder breadth: 41Length: 64Chest circumference: 102The recommended weight: 125-135XXL:Apply the height: 175-180Shoulder breadth: 43Length: 66Chest circumference: 106The recommended weight: 135-145XXXL:Apply the height: 180-185Shoulder breadth: 45Length: 68Chest circumference: 110The recommended weight: 150-160Package size: 380 * 280 * 20mm / 15.0 * 11.0 * 0.8inPackage weight: 600g / 1.3lbPacking List:1 * Heating Clothes