Ultra-comfortable warm winter socks are designed to keep your feet warm and dry all day long. Essential hiking, camping, cold weather gear. The thermal weatherproof crew socks keep heat close to the feet becoming ideal for any outdoor activities. Merino wool blend fabric makes socks incredibly soft while featuring moisture wicking capability and stay up performance. Helps to keep your feet cozy and dry. Great for wearing with boots or sneakers. Materials: 20% Merino Wool, 35% cotton, 35% polyester, 5% acrylic and 5% spandex.