The Carhartt Women's Ultimate Work Sock is designed for protection, warmth and longevity. This crew length sock is made from 50% acrylic, 31% nylon, 17% merino wool, 2% lycra-spandex. With mesh ventilation, the anti-odor fabric blend regulates temperature to keep feet dry and comfy all day long. Carhartt has equipped the Women's Ultimate Work sock with a reinforced heel, toe and arch for support where you need it the most. You will find a knit-in Carhartt logo at the toe seam and spandex reinforced tops that keep your sock up where it needs to be.