Increase your weekly mileage in a sock designed especially for women's feet. The SmartWool Women's Running Ultra Light Micro sock offers all the great features found in the unisex models with the advantage of offering a fit option for women and colors that complement women's running shoes. Plus, SmartWool donates a portion of all sales directly to Breast Cancer Awareness. Great features include all the SmartFit technologies: a flat-knit toe seam, elastic arch and ankle braces to hold sock in place and support foot, and an instep contour flex zone for maximum ventilation, flex, and a snug fit. And of course, the SmartWool Women's Running Ultra Light Micro sock features the unique SmartWool fibers that move moisture rapidly, while still in the vapor stage, keeping your feet drier and socks odor free. The SmartWool Women's Running Ultra Light Micro sock is cut just below the ankle and provides a performance, ultra light non-cushion fit.