Thick, flat foam sealing ring ensures maximum contact with the airbox, while acting as a breathable gasket for increased air passageExclusively formulated adhesive withstands repeated cleanings, even with harsh solvents and biodegradable oils/cleanersFine open-pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passageFused outer and inner elements prevent dirt and grime from being lodged between layersIncludes two foam FilterSkins for easy cleaning between rides