Often imitated but never equaled, the SOREL Women's Caribou 9" Boot delivers exceptional warmth, durability, and comfort for all your cold-weather activities. The nubuck leather upper and handcrafted vulcanized rubber shell are seam-sealed for total waterproofness. The removable 9mm ThermoPlus felt InnerBoot lining traps heat next to your foot where it belongs. A thick rubber midsole insulates the boot from the cold ground, while the AeroTrac nonloading outsole provides sure footing. The wool/acrylic blend Sherpa pile snow cuff adds timeless styling. 2.5mm bonded felt frost plug. Rated to -40°F/-40°C. 9" shaft. Imported.