Unisex OOriginal Sport Thong SandalThe OOFOS story begins with the OOriginal Sandal. This combination of sleek design and revolutionary OOfoam recovery technology lays the groundwork for all future styles and models. Sport: Features bold, hand painted graphics on the upper strap for a sporty look. OOfoam technology absorbs 37% more impact than traditional footwear. Proprietary footbed design reduces stress on knees, ankles and other joints. Closed cell foam is machine washable and