FootSmart Men's Coolmax Moderate Support Over-the-Calf Padded Socks 25% nylon Graduated support applies pressure at the ankle, slowly decreasing it up the leg, stimulating circulation; Graduated Support Level: Moderate (15-20mm / Hg) Coolmax polyester fiber draws moisture away from the foot, providing a cool, dry foot environment Terry cushioning at the sole, and a reinforced heel and balloon toe ensures a comfortable, non-binding fit; comfort top offers great stay-up performance without a restricting band Helps relieve: Circulation, DVT, Economy Class Syndrome, Edema, Heaviness in Legs, Leg Pain, Leg Veins, Spider Veins, Swollen Ankles, Swollen Feet and Legs, Tired, Aching Feet, Varicose Veins, Venous Insufficiency Made in the USA; 65% Coolmax polyester, 25% nylon, 10% spandex; Machine was on gentle cycle and lay flat to dry