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: cotton Size: S,M,L,XL,XXL,XXXL (optional) Type: fever in 7 areas S: Apply the height: 150155 Shoulder breadth: 34 Length: 58 Chest circumference: 90 The recommended weight: 7080 M: Apply the height: 155160 Shoulder breadth: 36 Length: 60 Chest circumference: 94 The recommended weight: 90100 L: Apply the height: 160165 Shoulder breadth: 38 Length: 62 Chest circumference: 98 The recommended weight: 110120 XL: Apply the height: 170175 Shoulder breadth: 41 Length: 64 Chest circumference: 102 The recommended weight: 125135 XXL: Apply the height: 175180 Shoulder breadth: 43 Length: 66 Chest circumference: 106 The recommended weight: 135145 XXXL: Apply the height: 180185 Shoulder breadth: 45 Length: 68 Chest circumference: 110 The recommended weight: 150160 Package size: 380 * 280 * 20mm / 15.0 * 11.0 * 0.8in Package weight: 600g / 1.3lb Packing List: 1 * Heating Clothes