Wigwam Men's Cool-Lite Pro Crew Socks 38% Dri-Release (85% Polyester, 15% Cotton), 39% Stretch Nylon, 19% X2o Acrylic, 2% Polyester, 2% Spandex Made in US Machine Wash US manufactured Ultimax moisture control Freshguard odor control Dries super-fast Cushioned sole