Darn Tough Merino Wool Hiking Socks are comfortable and durable.  These socks have been tested on long trails all over the globe. This sock is a heavy weight full cushion.  The thickest sock in the line.  A favorite of hunters and outdoor tradespeople.  This sock goes straight up your calf and stops just below the knee.  All Darn Tough socks are made in the USA and backed by  Darn Tough&##39;s Lifetime Guarantee. Specs: 73% Merino Wool 25% Nylon 2% Lycra Spandex