The 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. Product Details: OOfoam™ technology absorbs 37% more impact than traditional footwear. Patented footbed design reduces stress on knees, ankles and other joints. Closed-cell foam is machine washable and designed to minimize odour. Revolutionary OOfoam™ technology absorbs 37% more impact than traditional footwear foam materials to reduce the stress on your feet and joints. Product Name: Oofos Ooriginal Unisex Recovery Adult Sandal - Navy Oofos Code: OO-1000-1 Option: M3/W4 | EU 37, M2/W3 | EU 36, M4/W5 | EU 38, M5/W6 | EU 39, M6/W7 | EU 40, M7/W8 | EU 41, M8/W9 | EU 42