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. Hiking-specific padding helps reduce blisters, pain, pressures points, and moisture. Low-profile toe seam reduces the likelihood of irritation. 58 percent THOR-LON acrylic, 23 percent polyester, 14 percent nylon, 5 percent Spandex. Machine wash cold. Tumble dry low. Made in the USA.