OOFOS Unisex OOriginal SandalTHE ORIGINAL RECOVERY FOOTWEAR The Sandal that started it all. With its sleek design and OOfoam recovery technology, the OOriginal Sandal was proven to be so effective, its spirit lived on in all the later styles and models. And with more colors than ever to choose from, you can flex your recovery leaving the gym as much as you can at a backyard hangout with friends. SKU: 1000NEPTUNE OOfoam technology absorbs 37% more impact than traditional footwear.