The North Face Nuptse Bootie Fur IV fabric Durable, water-resisitant, element-shedding 100% recycled P.E.T. ripstop upper Comfortable ecoOrthoLite footbed Cushioned, abrasion-resistant, injection-molded EVA midsole-outsole IcePick temperature-sensitive rubber pods for increased traction 600 fill power down insulation