Baffin Impact Women's -100C (-148F) BootsTested at both the North and South Poles, Baffin Impact performs flawlessly under the most demanding conditions. Baffin Impact is appropriate for extended periods of time in extreme cold weather, snow and or ice covered environments, where activity level may be low to moderate. POLAR RATED For the coldest moments on Earth. Polar Rated cold comfort is achieved with moderate activity and has been Polar Proven by Baffin on expeditions to both the North