Darn Tough Women's Mountaineering Extra Cushion Socks are designed for extreme cold weather conditions. These socks are made from a blend of merino wool, nylon, and lycra spandex, offering a comfortable and durable fit. The merino wool material provides excellent insulation and moisture-wicking properties, keeping your feet warm and dry in harsh environments. The extra cushioning offers added comfort and protection, making these socks suitable for mountaineering, snowboarding, or skiing. The seamless construction and reinforced heel and toe areas ensure long-lasting wear. Whether you're conquering snowy peaks or enjoying winter sports, Darn Tough Women's Mountaineering Extra Cushion Socks are a reliable choice for extreme cold weather protection.