The Darn Tough Queen Bee Micro Crew Hiker Vapor women’s sock offers amazing comfort and functionality backed by the unconditional lifetime guarantee. It features a ribbed cuff and terry loops under the foot for comfort and protection. The sock includes a fine gauge knitting, true seamless fusion, fast action wicking and is naturally antimicrobial. The micro crew height sock is made of 51% nylon, 45% merino wool and 4% Lycra Spandex.