AXT dries 25% faster and is 3.5 times more abrasion resistant than other merino socks. Dimensional knit for a woman's fit. Relaxed top for stay-up comfort. Spandex arch panel promotes circulation and holds sock in place. Cushioned sole with mesh knit side channels for air flow to move moisture. Reinforced heel and toe for extended wear. Features: 36% nylon, 30% polypropylene, 30% merino wool, 2% polyester, and 2% spandex.