adidas Rivalry Soccer OTC Socks (2-Pack) 93% Polyester/4% Spandex/3% Nylon Imported Climalite moisture wicking fabric helps keep your feet cool and dry Arch and ankle compression for added stability Cushioned foot provides protection from impact X-Small fits Youth shoe sizes 9C-1Y; Small fits Youth shoe sizes 13C-4Y Medium fits shoe sizes: Men's 5-8.5, Women's 5-9.5 & Youth 4Y-6; Large fits shoe sizes: Men's 9-13 & Women's 10-12