An extremely comfortable and warm BC-boot with an integrated gaiter that is reinforced with Kevlar on exposed areas. The boot features a removable EVA innerboot ideal for expeditions and long journeys on skis in extremely cold conditions. Polar A/P/S also has a specially developed last that ensures you have room for wool liners. It also has extra insulation within the sole and the liner. The boot has been used on a wide range of expeditions in cold conditions. We recommend buying the boot 2 sizes larger than normal for use during extreme conditions.