The Smartwool Men's PHD Light Elite Pattern Snow Socks use targeted cushioning for maximum protection without the bulk™ perfect for your tight-fitting snow boots. They are made out of lightweight, breathable Merino and nylon mix wool for the best in comfort. They have the Indestructawool™ technology for enhanced durability, and Virtually Seamless™ toe for enhanced comfort. The 4 Degree™ elite fit system adds a dialed, performance-oriented fit. These Merino wool socks help enhance every snow day activity.