Champion Men's 12 Pack No Show Socks 97% Polyester, 2% Spandex, 1% Other Fibers Imported Machine Wash Double dry moisture wicking technology wick sweat and control moisture buildup, so feet stay cooler and drier Soft cotton-rich yarns for all-day breathable comfort and spandex for better fit Cushioned for high impact comfort Reinforced heel and toe resist wear and tear Size 10-13 - fits shoe sizes 6 to 12