Thorlos socks provide you with a supportive frame that boasts a lightweight design. You cant go wrong with these! Sold as a three-pair pack. No-show silhouette. THOR-WICK COOL fabric wicks moisture away from the skin to keep feet feeling cooler and drier. Breathable mesh construction keeps you cool all day. Achilles tendon pad reduces rubbing and chafing. Impact zones at the heel and ball reduce stress on high-stress areas of the foot. Elastic cuff with Experia callout. 65 percent THOR-WICK COOL, 34 percent nylon, 1 percent elastic. Machine wash warm, tumble dry low. Made in the U.S.A. Made in the USA.