The OOahh is a slipon, aftersport slide and more, made of OOFOS39s breakthrough OOfoam. The OOFOS OOAhh holds tight and conforms to your foot to ensure incredible impact absorption, arch support and natural motion. Ideal for postworkout recovery with moisture and bacteria resistance that make it great for the shower. OOfoam Absorbs 37 more shock than other materials. Reduces stress on sore feet, knees and lower back. Cradles your arches. Biomechanically designed footbed allows natural motion. Soft, conforming toe post eliminates toe chafing. Showerbeachready, moisture and bacteria resistant, doesnt retain smell. Durable OOfoam holds its cushion. Machine washable.