Polyester ripstop upper provides lightweight durability with heritage style 700-fill down insulation keeps feet warm during cold-weather transitions Slipper-style fit and low-boot cut make for easy on-off and laid-back comfort TNF™ DNA design details like puffy quilting and bold colorblocking bring retro vibes IcePick® temperature-sensitive rubber lugs adapt to the cold for better traction Reengineered outsole with updated lug pattern enhances grip on slippery surfaces Responsible Down Standard certified for ethical insulation From the lodge to the sidewalk, the Nuptse Traction Booties deliver iconic North Face warmth in a street-ready silhouette. Product Code: NF0A8DAAKX7