The OOFOS OOriginal soothes and reinvigorates your feet after a workout, so you'll be ready to do it again tomorrow. With OOfoam technology, the patented footbed design of the OOFOS OOriginal absorbs impact, cradles your arches and allows you to move naturally. Your feet will know the difference. OOfoam Absorbs 37% more shock than other materials, reduces stress on sore feet, knees and lower back, cradles your arches, and has a biomechanically designed footbed that allows natural motion. The soft, conforming toe post eliminates toe chafing. These sandals are shower and beach-ready, moisture and bacteria resistant, and do not retain smell. The durable OOfoam holds its cushion and is machine washable.