New Balance Women's 3 Pack Core Cotton No Show Socks White = 63% Cotton, 30% Polyester, 5% Nylon, 2% Lycra Spandex, Black = 66% Cotton, 32% Nylon, 2% Lycra Spandex Imported NB DRY moisture management technology quickly moves sweat to keep feet cool and dry. Reinforced ring spun cotton delivers softness and strength. Cushioned foot bed designed to minimize shock absorption. Stability Fit built in for enhanced arch support Reinforced heel and toe for extra durability and protection