MEN'S SHOE SIZE 7-12 MATERIAL: WOVEN WITH LUXURIOUS COMBED COTTON FOR SOFTNESS, NYLON FOR STRENGTH AND A TOUCH OF SPANDEX FOR LONG LASTING FUN! CARE: MACHINE WASH COLD / DO NOT BLEACH / TUMBLE DRY LOW 1% OF SALES OF BLUE Q SOCKS SUPPORT THE HUMANITARIAN WORK OF DOCTORS WITHOUT BORDERS. OVER $2M SINCE 2014