The Smartwool Hiking Light Crew is a Merino wool sock especially tailored for the female foot that's ideal for summer walking. Merino wool is a natural fabric that's highly efficient and will wick better than synthetics, helping your feet stay drier and more comfortable. The sock features a ribbed leg, elasticated arch brace for enhanced fit and support, a reinforced sole to protect against shock, blisters and abrasions, and a flat knit toe seam for extra comfort and durability.