Ninja Tabi SocksThe socks feature a split toe design, which allows for greater flexibility and mobility, much like the split toe footwear worn by ninjas! TABI TOE SOCKS Japanese Flip Flop Socks, Sandal SocksMade with non toxic color threads by OEKO TEX Standard 100 Certified. Gender free One size, Women's 6 11 Men's 7 11 50%Combed Cotton 20% Acrylic 18%Polyester 10%Nylon 2%Spandex Made by Craftsman in Japan