The Darn Tough Garden Light Crew is the perfect pick that delivers on comfort, style and versatility. The naturally antimicrobial sock is an all-weather performance sock. It is made of 59% Merino Wool, 38% Nylon and 3% Lycra Spandex. The sock features a performance fit, fine gauge knitting, fast action wicking and True Seamless for an ultra-smooth, invisible feel. All Darn Tough socks are Still Made in Vermont, USA and carry a lifetime guarantee.