The Baffin Crossfire s a function first winter boot, suitable for everyday winter wear. With multi-use capabilities, CROSSFIRE is recommended for use during moderate to high levels of activity and features a combination of Baffin&';s proprietary technologies. Whether you&';re shoveling snow or mountain scaling in Squamish, this boot is guaranteed to react Insulation Level: Removable Comfort-Fit multi-layer inner boot system Waterproof Level: B-Tek Dry Waterproof Base Technology Upper: Leather upper with nylon inserts for long-lasting durability Speed lace front fastening system Pull loop at the back for ease of entry Base: 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 tempera