【New, Unused, Authentic】 Size: 23.0cm This is the OOmega, a classic model of the popular recovery sandal "OOFOS." Unisex. It's a recovery sandal that has gained immense support from runners, athletes, and those who work on their feet. ◉ Features ・The unique material "OOfoam" reduces impact by 37% upon landing. ・Feet don't get tired easily even after walking for long periods. ・Arch support structure firmly supports the soles of the feet. ・OK as a shower sandal! Water-resistant and easy to care for.