Merino Wool keeps them desert dry, while silky, light cushion adds miles to any journey from one climate to the next. It is the ultimate fiber for breathability and comfort in all conditions. Pulls moisture away from the skin and is fast drying. Sits mid-calf for added protection and warmth. 52% nylon, 45% Merino wool, 3% Lycraspandex. One pair. Women's size: S (4.5-7), M (7.5-9.5), L (10-11.5). Darn Tough Women's Her Spur Boot Socks