OOFOS OOAHH SLIDE UNISEX in Slate Men’s 8/Women’s 10 Excellent pre-owned condition The original Recovery Footwear An evolution of the OOriginal, featuring an agile OOfoam™ strap for additional support and comfort. OOfoam™ technology absorbs 37% more impact than traditional footwear. Patented footbed design reduces stress on knees, ankles and other joints.