Suitable for doing much more than getting out of bed for a midnight snack the Acorn Men's Upside Down Slipper has an EVA midsole and enhanced heel and arch support for going far beyond the refrigerator. With a weatherproof outsole skid resistant tread and toasty goose down insulation the Upside Down Slipper for men is built for those pre-dawn rituals such as walking the dog or fetching the morning newspaper.