When you sweat hard, Eastbay's EVAPOR™ works hard. Our Performance Game Crew Sock features EVAPOR™ technology, designed to wick sweat away from your body and help it evaporate. It keeps athletes cooler and more comfortable. The fabric also works to control odors. The anatomical left and right design is the ultimate in fit. But not just about comfort, this sock is practical too. Anti-friction yarn reduces irritation during motion. Includes cushioned pivot panel and ankle panel, as well as a fitted heel pocket. You can feel the extra support through the leg and underneath with the ribbed arch support. Eastbay logo on the toe. 68% polypropylene/5% Endurall/8% Stacool w/odor control/8% nylon/11% elastic. Made in the USA.