Darn Tough Merino Wool Athletic Socks are a sturdy and comfortable option for on the court, at the gym, or everywhere in between. This sock is light-weight.  It is the thinnest of the Darn Tough socks.  It is a quarter length sock that will hit right above the ankle bone. All Darn Tough socks are made in the USA and backed by  Darn Tough&##39;s Lifetime Guarantee. Specs: 51% Merino Wool 45% Nylon 4% Lycra Spandex