91% Cotton, 7% Nylon, 2% Spandex Wider in the Foot, Ankle and the Leg. Stretches up to 25 Inches at the Calf. 3 Pairs of Extra Wide Athletic Crew (Mid-Calf) Socks Goes on Easy and Stays up. Comfortable, Non-Constricting. Perfect for People with Edema or any Condition where Feet, Ankles, or Legs are Wide or Swollen 91% Cotton 7% Nylon 2% Spandex. Proudly Made in USA!