Prestige Medical Womens Ultrasoft Cotton Compression Socks. Features everyday comfort with an ultrasoft cotton finish for nurses and people on their feet. Medium/Large: Sizes 8 to 11, Fabric Material: 90% Cotton, 7% Polyester, 3% Lycra Spandex. Compression: 15-20mmHg, Length: 12 inches, Unit of Measure: Single Pairs.