Description from evo: From pre-warming your boots on the drive up to the hill to drying them out on your way back home, the DryGuy Travel Guy DX Boot and Shoe Dryer is the ski bum’s ultimate secret weapon. Combining convection with gentle heat (approximately 99°F), this quiet, compact, and effective system features both AC and DC outlet adaptability so you can run ’em seamlessly in your car, house, or both without a hitch!