•The heating vest can warm your body gradually to promote blood circulation and relieve stiff muscles caused by cold winter •The heated vest is lightweight which can make it easier for you to go through the whole winter without wearing bulky clothes •Built-in carbon fiber heating elements generate heat at core body areas such as abdomen, back, shoulder, and neck, to make you warmer and warmer •Fast heating speed, three temperature gears adjustable: 38℃/45℃/55℃ •The body heater vest has a convenient USB plug that fits most power bank (power bank is not included) •The heating vest is washable, easy to keep clean Specification: •Size: S/M/L, XL/2XL/3XL, 4XL/5XL/6XL, 7XL/8XL/9XL •Fabric: Polyester •Suitable season: winter •Applicable voltage: 5V 1A •Three-speed temperature control: high temperature file 55℃, medium temperature file 45℃, low temperature file 38℃ •Operating temperature range: about -5℃ to 40℃ Size Details: •S/M/L: Length 67cm, 1/2 Bust 53cm, Shoulder 44cm, 1/2 Hem 54cm •XL/2XL/3XL: Length 72cm, 1/2 Bust 58cm, Shoulder 46cm, 1/2 Hem 59cm •4XL/5XL/6XL: Length 76cm, 1/2 Bust 63cm, Shoulder 48cm, 1/2 Hem 64cm •7XL/8XL/9XL: Length 80cm, 1/2 Bust 68cm, Shoulder 50cm, 1/2 Hem 69cm •(This size is measured by hand, 1-2cm error is normal) Package included: •1 x Heating Vest •Not including power bank