OOFOS Unisex OOriginal Thong Black Recovery Sandals - Free 。These sandals are specifically designed for post-workout recovery and feature several key technologies: -OOfoam™ Technology: Proprietary foam that absorbs 37% more impact than traditional footwear foam, reducing stress on feet and joints. -Patented Footbed designed to cradle the arches and reduce energy exertion in the ankles. -Recovery Focus aimed at soothing and reinvigorating feet after tough workouts, while also reducing stress on knees, ankles, and the lower back. -Machine washable and made of closed-cell foam to minimize odors. Pre-owned. Signs of normal gentle previous wear to interior and exterior. One toe post is a bit bent. To ensure your satisfaction, please view all photos. Try zoom for a closer inspection.