The North Face Women's Nuptse II Strap Waterproof Winter Boots offer a toasty 700-fill down, waterproof DryVent™ fabric and an adjustable strap to refine fit that will become your favorite. These boots are made with a waterproof, 100% recycled closed-woven polyester upper that features a DryVent™ waterproof membrane. Their OrthoLite® sockliner combined with single-density, molded-EVA midsole provide you the best in comfort while their durable heel webbing and waterproof front zipper allow for easy on and off. The Surface Control™ rubber outsole has been optimized for winter conditions, and their down insulation is certified to the Responsible Down Standard (RDS) by Control Union which gives you the peace of mind you need. The North Face Women's Nuptse II Strap