One of the warmest slip-ons on the planet, The North Face Nuptse Bootie III is ideal for everyday dry winter walks and high-altitude basecamps alike. Stuffed with 700 fill down insulation for incredible warmth, these are the boots your feet would choose to pull on in the most extreme cold. On the outside, the water and abrasion-resistant P.E.T fabric is made from post-consumer recycled plastic bottles, making it good for the environment without compromising performance. A Northotic footbed and compression-molded midsole makes for comfortable support, and temperature-sensitive Ice Pick pods on the sole stiffen in the cold to ensure high-traction footing on the ice. Elastic secures the ankles and a drawcord seals out the cold around the collars. Both colorways are now available through ripe Japan, and via The North Face for US customers.