The Darn Tough Grace Crew Taupe features a geometric print that truly stands the test of time. The women's sock features merino wool, fine gauge knitting, fast action wicking and true SeamlessT to offer an ultra smooth, invisible feel. The sock is guaranteed for life and is naturally antimicrobial. The crew height sock is built light, darn comfortable and super strong to provide a lightweight, sure fit. It comprises of 62% merino wool, 36% nylon and 2% lycra?Â« spandex.