MOC Pile Half One of the few sport-style socks at Anonymous Ism, the MOC Pile half features a cushioned sole with pile knitting for added comfort. Support is woven in at the heel, ankle, and arch for a secure fit, while nylon reinforcements from heel to toe enhance durability, making these socks both comfortable and tough. Construction : Pattern knitting Composition : 65% Acrylic 20% Cotton 8% Nylon 5% Wool 2% Spandex. COO : Made in Japan Size guide : Size Medium : Length 8.5" and fit best for 25-28cm feet, approximately US Men's size 7-10 Size Large : Length 9.5" and fit best for 27-30cm feet, approximately US Men's size 9-12