When the weather is cold, you don't have to call off the hunt. Thorlo socks are designed to be worn during moderate to cold weather. Cushioning at ball, heel, and arch of foot for better fit and comfort. Full padding around toe for maximum warmth and protection. Socks are made of 50% Thor-Lon acrylic/34% insulating hollow-core polyester/15% cotton/1% spandex. Imported.