Only worn once to try on - didn't fit and missed the return window. Brand new! Super comfortable, designed to be recovery shoes for runners, but would be great for walking around in the summer. Made with OOfoam™, a proprietary foam that provides 37% more impact absorption than traditional EVA shoe foams Soles and footbeds allow for the natural motion of your feet, reducing stress on sore feet, knees and back Minimalist construction leads to light weight Machine-washable foam is moisture and bacteria resistant OOFOS sandals are made in whole sizes; OOFOS recommends sizing down if you're a men's half size, or size up if you're a women's half size