Built for lasting performance, the Revel 4 Mid Height Polar Insulated Snow Boot features waterproof, breathable protection and a comfort-minded construction to keep feet happy mile after mile. Made with a thermal heat shield inside to capture warmth and featuring a speed lace webbing system, the Revel 4 Polar insulated snow boots for men are built off KEEN's traditional wider footwear form. KEEN products are consciously created using PFC-free water repellent (in applicable styles) and leather sourced from Leather Working Group (LWG)-certified tanneries. KEEN makes shoes to make a difference. As a brand born for life outside, KEEN has a responsibility to protect and conserve the places where all people live, play and work with no ceiling.