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 is a Micro Crew length.  It will peek over the top of a standard boot.  All Darn Tough socks are made in the USA and backed by  Darn Tough&##39;s Lifetime Guarantee. Specs: 70% Merino Wool 28% Nylon 2% Lycra Spandex