Hanes 910/4 Mens ComfortBlend Crew Socks (Unit Per Pack) 100% Cotton socks closure White: Polyester/cotton/rubber/spandex/other Black: Polyester/cotton/rubber/spandex/other Compact cushioning gives you all the comfort without all the bulkiness. Breathable cotton blended with spandex for a better fit. Wicks away moisture to keep you cool and dry. Extra-durable long-lasting heel and toe areas.