Oofos OOriginal (Unisex) - BlackOofos Original Recovery Sandals Their most popular shoe soothes and reinvigorates your feet after a workout, so you will be ready to do it again tomorrow. With OOfoam technology, the patented footbed design absorbs impact, cradles your arches and allows you to move naturally. Your feet will know the difference. Best For Reducing stress on sore feet, knees, and back. Technology Performance shoe foam is designed to rebound and propel you forwards.