These winter socks are made of 60% wool, 35%cotton and 5% spandex, which are soft, warm, and comfortable. The socks are suitable for skiing, hiking, trekking, mountaineering, camping, cycling, running, and other outdoor sports in winter. They are designed to provide better thermal insulation and moisture wicking, keeping your feet warm and dry in cold weather. The socks are also breathable and odor-resistant, ideal for long-term wear. The socks come in purple, gray, pink, and white, one size to fit different foot types. They are machine washable and easy to care for, making them an excellent choice for outdoor enthusiasts.