adidas Metro IV OTC Soccer Socks 98% Nylon/2% Natural Latex Rubber Imported Lightweight yarns and durable construction for a close fit; targeted arch and ankle compression for added comfort and support Climalite moisture wicking fabric helps keep your feet cool and dry X-Small fits Youth shoe size 9C-1Y; Small fits Youth shoe size 13C-4Y Medium fits shoe sizes: Men's 5-8.5, Women's 5-9.5, and Youth 4Y-6 Large fits shoe sizes: Men's 9-13 and Women's