Dickies Men's 2 Pack All Season Merino Wool Light Cushion Quarter Socks 42% Acrylic, 24% Nylon, 19% Merino Wool, 10% Polyester, 5% Spandex Imported Machine Wash Temperature regulating merino wool blend keeps feet comfortable year round Moisture control fibers keep feet dry Ventilation channels engineered for air circulation and moisture control Lighter weight leg construction perfect for year round comfort, arch compression provides added support and stability Half cushion, zone cushioning through foot provides non-bulky cushioned comfort, reciprocated heel and toe for superior fit and comfort, reinforced heel and toe provides added durability