Gerbing 12V Heated Jacket Liner The Gerbing Heated Clothing 12v Heated Jacket Liner is a durable wind resistant liner made from nylon that boasts 7 microwire heated zones to keep you warm. This liner from Gerbing Heated Clothing is designed to be worn close to your body underneath your jacker. The liner also works as a great heated wind breaker that can be worn on its own. Features Ripstop nylon shell Pre-wired glove connections Elastic cuffs Max heat of 135F YKK zippers 7 Heating zones (chest, collar, sleeves and back) 12v DC 6.4 amp Battery harness and temperature controller for operation (sold separately)