Please note: OOFOS recommends buying half a size up in this style. A different take on the classic, made with a unique 4-way stretch woven canvas-like material, these shoes contour the entire foot. 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 odor. Gently used condition, see photos From a smoke-free, pet free home