More than just a slide, the Oofos OOahh Slide Sandal features patented Oofoam technology, designed to cradle your arches and cushion sore joints after a workout. This shock-absorbent recovery sandal is so light it floats. Absorbs 37% more shock than other materials and reduces stress on sore feet, knees, and lower back. This sandal cradles your arches and the biomechanically designed footbed allows natural motion. Shower/beach-ready; moisture resistant; doesn't retain smell. The durable OOfoam holds its cushion and is machine washable.