Tested at both the North and South Poles, Impact performs flawlessly under the most demanding conditions. 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. Features Insulation Level: Removable Comfort-Fit multi-layer inner boot system; Waterproof Level: B-Tek Dry Waterproof Breathable; For the coldest moments on Earth.; Polar Rated cold-comfort is achieved with moderate activity and has been Polar Proven by us on expeditions to both the North and South Poles.; A powerful waterproof technology, offering high wet protection with increased breathability.; This category of waterproofing protects from the elements, while providing lightweight comfort for active lifestyles.; Technology Upper; Double buckle fastening for added security; Nylon locking snow collar to protect from the elements; Base; Snowshoe compatible; Arctic Rubber shell to provide lightweight flexibility, cold-resistance and resilience; EVA midsole for light-weight insulation and cushioning; Polar Rubber outsole for maximized grip and longevity of boot at cold temperatures; Insulation; Removable Comfort-Fit multi-layer inner boot system featuring:; Thermaplush soft, next-to-foot wicking layer for warmth; Form fitting B-Tek Foam lining for comfort; Double B-Tek Heat lightweight, 4-channel hollow-fibre insulation for high-loft breathability in a broad range of temperatures; Vaporized Aluminum Membrane for energy reflection and heat regulation; PolyWool polyester wool blend for breathable warmth; Hydromax layering for improved moisture management; Diamond Net insulation for wind-resistant protection with a lightweight feel; Double aluminum insole to retain body heat; Waffle-comb footbed designed to trap warm air and control odour; Double aluminum insole returns heat and reflects cold for temperature regulation; Specifications: Height: 15"; External Forefoot Width: 5.25"; External Length: 13.25"; Weight of Pair: 7.42 lbs - Based on Men's Size 9;
