Carhartt Women's Force Copper Work Crew Socks 41% Polyester, 18% Polypropylene, 18% Wool, 13% Acrylic, 7% Nylon, 2% Other Fibers, 1% Lycra Spandex Made in US Machine Wash Cupron enhanced fibers will kill 99.9 percent of athlete's foot fungus on the sock Fast dry technology quickly moves sweat Odor control technology keeps feet fresh Arch support for fit Carhartt force collection