Designed for hiking in moderate climates on varied terrain, these crew length socks are made with exclusive 87% Thor-Lon acrylic, 11% nylon and 2% Lycra spandex. Resilient and durable, with a built-in ventilation panel and more moisture-wicking than ever. Thick cushioning in the ball and heel reduces shock, impact, shear, and blisters. Moderate cushioning in arch for comfort and a better fit. Made in USA.