1Multiarea heating, the heating area is reasonably distributed on the back, waist, stomach and abdomen to protect key parts from cold. 2Neoprene carbon fiber, soft and slick, moisture absorption and breathable, ecofriendly. 3Fast heating, improves human circulation, promotes metabolism, and improves human immune function. 4USB power supply, 3 gears intelligent temperature control, you can adjust it according to needs. 5The vest can be washed, be sure to take out the power bank before washing. 6High quality fabric, crease resistant and wear resistance, waterproof and warm keeping.