The Darn Tough Vines Light Crew Taupe sock wraps your feet with its superior comfort and durability. It is entwined with the softest Merino Wool yarn and guaranteed for a lifetime of wandering. The true seamless sock features fine gauge knitting and fast action wicking that pulls moisture away. It is naturally antimicrobial and repels bacteria and odor. The crew height sock is made of 56% Merino Wool, 41% Nylon 3% and Lycra?Â« Spandex.