For all your winter needs, we updated our best seller to perform in even harsher conditions, with a range of high-tech benefits and a new fit created specifically for movement. The waterproof Adirondack III features an outsole designed to stay flexible in freezing temps, extra warming insulation, a cushioning insole, and a higher cold-weather rating from -20C to -32C (that's -4F to -25.6F). Ideal for the mountains, the city, or anywhere in between – this boot will last you years and years.