The Sidas Dryflow UV Refresher will have your boots and gloves completely dry within hours, with a drying time controller, adjustable size, and 5V/2A USB charging port. The Refresher utilizes the Thermic Care system to stop the growth of bacteria and germs while providing optimal warmth for ski boots and sports shoes. The Dryflow UV Refresher is also compact and silent, eliminating any unpleasant odors.