Lill Sport Overboot - Main purpose of the Oberboot is to provide increased insulation against cold when standing still or during minor movement. Upper part is made of waterproof and water vapour permeable outer fabric and a lining of warm and low absorbant pile. The bottom part consists of a detachable, insulating inner sole and an abrasion resistant and highly flexible outer sole made of CSM-coated high tenacity Polyamide. This product is used of the swedish military.