The Women's McMurdo Boot from The North Face is a serious performer for severe winter conditions. Featuring a completely waterproof nubuck leather upper and durable rubber outsole, the McMurdo boot will keep you dry in the slushiest conditions. For insulation The North Face has used 400 gram PrimaLoft Eco insulation that will keep you toasty warm and manage moisture well. The faux fur collar around the top of the boot wins style points and feels great against your legs.