Includes four pairs of over-the-calf socks Medium-level compression Patented Copper Znergy technology: copper- and zinc-infused UltraGuard technology in heel and toe Reduces friction Premium anti-odor technology and wicking capabilities Compression helps provide relief from minor aches, pains, and muscle soreness Infused infrared yarn helps keep the body warm Content: 91% polyester/5% spandex/4% other fiber Care: machine wash, tumble dry Imported