These heated thermal socks are designed to keep your feet warm during the cold winter months. It reinforces heel and toe for extra durability with its high bulk acrylic yarn. It also keeps feet fresh and odor free, the comfort toe seam helps reduce abrasion and improves comfort. These socks are 91% acrylic, 5% nylon, 3% polyester and 1% elastane. Comes packaged in a hanging header card and one pair. Comes in assorted colors.