Dickies Women's 2 Pack Sorbtek Moisture Control and Wicking Crew Socks 93% Polyester, 6% Rubber, 1% Spandex Imported Machine Wash Sorbtek moisture control - breathable, moisture-wicking sorbtek technology keeps feet cool, dry and comfortable while protecting socks against soils such as sweat and grass Lighter weight construction and half cushion foot provide non-bulky comfort, for year round wear Arch compression provides added support and stability Ventilation channels engineered for air circulation and moisture control Reinforced heel and toe provides added durability