ECCO Men's Wool Socks Outdoor with Terry 53.2% Acrylic/18.3% Polyester/18% Wool/6.7% Nylon/1.7% Elastic/1.1% Cotton/1% Spandex Imported Machine Wash Provides Optimum Moisture Management system that wicks moisture away from skin non- itch wearability provided by the silky soft Merino Wool fibers that give long hours of outdoor comfort