NWT- OOFOS OOriginal Sandal- Lightweight Recovery Footwear; Multiple SizesPRODUCT DETAILS:FABRIC TYPE:100% Synthetic SOLE MATERIAL:OofoamOUTER MATERIAL:SyntheticABOUT THIS ITEM:FEEL THE OO - The OOFOS shoe story begins with the OOriginal Sandal. The combination of sleek design and OOfoam recovery technology laid the groundwork for all future OOFOS styles and models.OOFOAM TECHNOLOGY- The revolutionary OOfoam technology absorbs 37% more impact than traditional footwear foam materials to reduce the stress on your feet, joints & back. Plus, the closed-cell foam is machine washable and designed to minimize odor. PATENTED FOOTBED - This patented footbed cradles and supports arches to reduce energy exertion in the ankles by up to 47% compared to competitors’ footwear. So walking is easier. Recovery is faster. And yOO feel better.BACKED BY SCIENCE- Research shows OOFOS reduce load, decrease compressive forces, and support foot mobility when compared to traditional footwear. As a result, every OOFOS style carries the American Podiatric Medical Association Seal of Acceptance!MADE FOR RECOVERY- When you’re always on the go, the demand on your joints can translate into fatigue, muscle tightness & pain. OOFOS don’t want to slow you down. These shoes are designed to help your body work less—so you can do more.