New Balance Unisex 3 Pack Crew Core Cotton Socks White = 71% Cotton, 22% Polyester, 5% Nylon, 2% Lycra Spandex and Black = 72% Cotton, 25% Nylon, 2% Lycra Spandex, 1% Olefin Imported Stability Fit built in for enhanced arch support Lightning Dry moisture management technology quickly moves sweat so your feet stay cool and dry Reinforced heel and toe for extra durability and protection Stability Fit Arch Support & Hold Soft Ring spun Cotton Comfort Lightning Dry Moisture Management Reinforced Heel & Toe and Half Cushion Stay-Put Fit