Pearl Izumi Women's Infinity No Show Sock 66% nylon 30% polyester 4% spandex Made in US Fall/Winter 2013 Women's Infinity No Show Sock combines the superior moisture transfer of our ELITE Transfer yarns with anatomic runspecific cushioning The perfect balance of anatomic fit, performance engineered materials and the personal interface between athlete and gear A clothing system that works to help you maintain the perfect temperature for the weather conditions and activity range day in and day out