Keep soles trekking freshly mile after mile in this Thorlos hiking crew sock. Sold as a three-pair pack. Crew sock sits at the calf. THOR-LON fibers are soft, resilient, durable, and wick moisture away from the skin to keep feet feeling cooler and drier. Ventilated panels for heightened breathability. Cushioned instep and arch for a better fit and feel. Sport-specific padding helps reduce blisters, pain, pressures, and moisture. Low-profile toe seam reduces the likelihood of irritation. 56 percent acrylic, 25 percent polyester, 14 percent stretch nylon, 5 percent Spandex. Machine wash cold. Tumble dry low. Made in the U.S.A. Made in the USA.