The Darn Tough Bridge No Show Blue women's sock features elements of Art Deco-inspired design in two bold color palettes. This sock features merino wool, fine gauge knitting, fast action wicking and true SeamlessT to offer an ultra smooth, invisible feel. Itis built light, darn comfortable and super strong to provide a lightweight, sure fit, andis made of 54% merino wool, 43% nylon and 3% lycra spandex.