The OOFOS OOcoozie Mule Shoe combines the coziness and convenience of a slipper with the comfort and support of OOFOS’ patented footbed. These mule-style shoes help you recover from your workouts (or life) while you lounge around the house or run errands. Plus, every time you put them on it will remind you of reading a book curled up by the fire, even if your life is a little more hectic than that. Upper - Warm vegan sherpa material that is both recyclable and machine washable. Midsole - OOfoam™ technology and the patented footbed absorb 37% more shock than other materials. The biomechanically designed footbed supports your arches and allows your feet to move naturally.