OOFOS OOriginal Unisex Thong Sandals Black SyntheticThe OOFOS OOriginal is a casual unisex thong sandal that delivers a combination of sleek design and revolutionary OOfoam recovery technology. These OOFOS OOriginal Black Synthetic Unisex Sandals have the following features: 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 designed to minimize odor 1000