Walls Men"s Crew Premium Work Socks, Black, 4-Pair: * Made with Coolmax for moisture management that keeps feet dry * Made with Lycra Spandex for superior stretch and fit * Cushioned sole for comfort and absorbtion * Durable reinforced heel and toe * Fabric content: 62 percent polyester/30 percent Coolmax polyester/5 percent nylon/3 percent lycra spandex * Care instructions: machine washable