Built tough enough to withstand the true north, yet light enough for all-day comfort, our Luke 4 insulated boots are ready for whatever winter throws their way. These -40°C-ready boots are like a warm hug for little feet, wrapped in waterproof nylon, fleece insulation, and soft boa lining. With a quick tug on the bungee lacing system, they'll be ready to go conquer a mountain. Their flexible, grippy soles are perfect for scrambling over snow banks and navigating slippy trails. - Comfort rated: -40°C - Waterproof Bottom