New Balance Women's 6 Pack Core Cotton Crew Socks Black = 63% Cotton/32% Nylon/2% Lycra Spandex/3% Other Fibers/White = 62% Cotton/27% Polyester/7% Nylon/2% Lycra Spandex/2% Other Fibers Imported NB DRY moisture management technology quickly moves sweat to keep feet cool and dry. NB Fresh treatment with Silvadur keeps socks fresh and fights odors 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 Stability Fit Arch Support & Hold Soft Ring spun Cotton Comfort Lightning Dry Moisture Management Reinforced Heel & Toe, Half Cushion and Comfort Toe Seam Stay-Put Fit