New Balance Socks Size Chart Designed for high performance athletes who demand the best, the Trail Crew offers the latest sock technologies including an anatomical left/right fit, engineered arch support, strategic cushioning and best-in-class moisture management. 1 pair per package. Made in the U.S.A. Features: - NB Dry moisture management - Seamless Toe - Strategic Cushioning in strike zones - Cupron antifungal fibers in heel and toe are EPA registered to kill 99.9% of Athlete's Foot fungus after 12 hours of contact with the socks - Mesh panels for increased breathability - Reinforced heel and toe for added durability - Stability fit arch support for a snug fit - 31% polyester, 24% acrylic, 24% wool, 20% nylon, 1% spandex