Like new condition! Synthetic upper in a comfort flip flop sandal style with an open toe Revolutionary OOfoam™ technology absorbs 37% more impact than traditional footwear foam materials to reduce the stress on your feet and joints Lightweight, minimalist construction Machine washable, plus moisture- and bacteria-resistant Proprietary footbed design reduces stress on knees, ankles and other joints Durable traction outsole OOFOS are made in whole sizes: size down for half sizes