My sons wear rubber boots (Muck Boots) at school all day where they get wet and muddy, and water gets inside from an awesome day splashing in the Alaska fall rain.The dryer just does not get the boots completely dry inside. Warm, sure, but after 2 weeks nightly use they have never come out dry.The boots are on the dryer a minimum of 12 hours a night, usually longer. Going to buy a Peets dryer locally and see if that style works better.