Merging the ease of a chelsea boot with the heavy-duty performance of our iconic Butte, the Butte Chelsea Boot is cold-weather rated to -20˚C (or -4˚F), incorporating waterproof construction, warming insulation, and innovative Vibram® outsoles designed to stay flexible in freezing temps. Rugged on the outside and cozy on the inside, it’s made from waterproof full-grain leather and lined with soft sherpa, adding our innovative UGGpure™ wool blend for all-day wearability in the mountains or the city.