Youll feel like youre walking on clouds with the Thorlos Ultra Light Hiking Crew sock. Sold as a three-pair pack. THOR-WICK COOL fabric wicks moisture away from the skin to keep feet feeling cooler and drier. Unique padding specifically engineered for trail hiking; clinically shown to reduce blisters, pain, pressures and moisture. Cushioned instep and arch for a better fit, more support and less pressure on feet. Ventilation panel for extra moisture control and breathability. Low profile toe seam wont rub or irritate the feet. 75 percent THOR-WICK COOL, 17 percent stretch nylon, 8 percent spandex. Machine wash warm. Tumble dry low. Made in the U.S.A. Made in the USA.