Design and Details Made in the USA Cushioned Performance fit Slip, bunch, and blister resistant Reinforced footbed and Achilles cushion improves the comfort of our socks and helps them last longer Merino Wool is at home on the trail, naturally moving moisture to keep feet fresh and dry in all weather Midweight socks thermoregulate to wrap feet in steady comfort when temperatures change 59% Nylon, 39% Merino Wool, 2% Spandex Lycra. Socks from the Darn Tough brand.. Ready to give it a try? Visit www.dickssportinggoods.com to learn more, explore additional product details, and check availability at a DICKa (TM)S Sporting Goods store near you. Place your order online for fast shipping or in-store pickup a " DICKa (TM)S makes it simple to find exactly what you need..