Firstgear Heated Layer Shirt The Firstgear Heated Layer Shirt optimizes heat transfer while reducing bulk. Seven heat panels on the chest, arms, neck, and entire back deliver more heat to more places than any other garment. Each zone can be adjusted to fit the rider's body. All this efficiency means less insulation and power is required to deliver and retain the desired heat. Features: Durable, hand washable and extremely lightweight Form-fitting, stretch fabric compression for optimal heat transfer Durable, lightweight fabric with moisture-wicking properties and an anti-bacterial treatment Integrated glove plugs stow in dedicated zipped pockets when not in use Dual zone heating for use with either a Single or Dual Heat Troller Designed to be plugged into a DC power source or battery pack 48-Watts output 3.5 Amps draw at 13.8V Packs into its included zippered pouch One-year manufacturer's warranty Note: Heat-troller sold separately.