Darn Tough Women's Merino Wool Mini Stripe Shorty Light Cushion Lifestyle Socks 59% Merino Wool, 38% Nylon, 3% Lycra Spandex Made in Vermont, USA Unconditional Lifetime Guarantee Performance fit and Unsurpassed durability Women's Sizes: Small 4.5-7, Medium 7.5-9.5, Large 10-11.8