Wigwam Mens Hot Weather Dress Pro Sock 38% Dry-Release, 39% Stretch Nylon, 19% X2o Acrylic, 2% Stretch Polyester, 2% Lycra Spandex Made in US Machine wash A lightweight crew sock with stay put leg and cushiony sole Patented moisture control system featuring dry-release helps prevent blisters Natural chitosan in x2o acrylic combined with feshguard fight against odor and bacteria Seamless toe closure for comfort Breathable mesh instep keeps you cooler