Available in a range of sizes from S to XXL, this Heated Vest is designed to provide full-body warmth with 4 efficient heating zones. These zones strategically emit heat across the abdomen, waist, and back to ensure an ideal core temperature during any activity. The advanced combination of soft velvet inner fabric and high-quality carbon fiber heating pads grants up to 12 hours of continuous comfort and warmth. To ensure a seamless experience, this USB Heated Vest features a conveniently hidden interface within the inner pocket—just don't forget to remove any connected power banks before washing. Note: A power bank is not included with the vest.