Women's Core Performance Quarter 3 Pack Socks 54% Polyester, 40% Nylon, 4% Cotton, 2% Lycra Spandex Made in US Machine Wash NB DRY moisture management technology quickly moves sweat to keep feet cool and dry. NB Fresh odor control treatment with Silvadur resists odors. Cushioned foot bed provided all day comfort. Stability Fit arch support for a snug fit. Reinforced heel and toe for extra durability and protection Stability Fit Arch Support & Hold Soft Touch Spun Polyester Lightning Dry Moisture Management Reinforced Heel & Toe and Half Cushion Anti-Microbial Finish to Fight Odor