OOFOS Ooahh Slides Black Recovery Comfort Sandals Womens 8 EU 39 * The Original Recovery Footwear. * OOahh - An evolution of the OOriginal, the OOahh slide features our proven foundation of OOfoam technology + patented footbed design with a slide-style strap that has become a best-seller in the OOFOS line * OOfoam Technology - Our 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 - Our 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 Very Good Condition, Smoke Free Home, Fast Shipping!