Your First Mate will always have your back or your feet. Sold as a one-pair pack. Crew-cut style sits at the calf. Self-adjusting welt cuff. Deep heel pocket. Ultra-light cushioning for maximum performance in close-fitting shoes. Y-stitch heel. Virtually Seamless toe. 57% wool 40% nylon 3% elastane. Machine wash warm tumble dry low. Made in the U.S.A. of imported yarn.