Designed to operate with a standard household electrical outlet or your automobiles' 12V power socket Bag Features three temperature settings W-around heating unit keeps boots warm External front expanding helmet pocket can also be used to carry extra clothing and ski accessories Unheated side accessory pocket keeps must-haves close Padded, adjustable backpack straps lets you easily transport bag from car; straps can be tucked away when not in use Bottom has metal drainage grommets to keep contents dry DETAILS Specifications: Exterior Dimensions: 15" x 14" x 10" Color: Black/Gray Weight: 5 lbs Material: 1200 Denier Poly/Nylon Blend Warranty: 5 Years