The London Snow Boot is part of the Miku Series, an attractive luxury line where fashion meets all the functionality of a performance Baffin boot. This boot is seam sealed, waterproof and lined with Baffin's B-TekTM 4-channel hollow fiber insulation to maximize heat conservation. Rated to -20 C/-4 F, this boot is designed to comfortably fit a woman's foot while maintaining a tapered, slender look. Temperature rating: -20C/-4F Fixed-lined inner boot system with Thermaplush EVA midsole and Polar R