A favorite of ours + yours, RoToTo socks are made by artisans in Nara, Japan using sustainable yarns. This pair is especially cool and comfy in old-school, ribbed varsity stripes. - SM 23-25cm (womens shoe size 6-8), M 25-27cm (womens shoe size 8-10, mens shoe size 6-9) and L 27-29cm (mens shoes size 9-13). - 73% cotton, 12% acrylic, 13% polyester and 3% polyurethane.