Darn Tough Women's Merino Wool Function 5 Over-the-Calf Padded Cushion Skiing Socks 66% Merino Wool, 32% Nylon, 2% Lycra Spandex Made in US Unconditional Lifetime Guarantee Performance fit and Unsurpassed durability Women's Sizes: Small 4.5-7, Medium 7.5-9.5, Large 10-11.5 Made in Vermont, USA