The Moritza shoes feature Columbia's Omni-Heat Reflective technology. This combines insulation fibers with a material that reflects thermal radiation back, meaning the shoes not only trap warm air but also return part of your body's radiant heat for added warmth! The front and sides of the foot have a rubber lower section, while the rest of the outer material is suede leather treated to be waterproof. Inside, theres a comfortable fleece lining, and the insulation has a warm material weight of 200g/m². The Moritza is a great choice for both urban and hiking use. - Waterproof construction - Lightweight Tech Lite midsole provides just the right amount of shock absorption - Omni-Grip outsole is optimized for winter use The product is free of PFAS compounds.