UGG. 1095141 SAN. ADIRONDACK BOOT 3. SAND.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 -20 C to -32 C that s -4 F to -25.6 F .