AeroSkin air filter wraps are specially designed to wraparound your air filter assembly to provide that addedlayer of protection against the harsh environment. It willextend the service interval ofyour cotton air filter during dusty conditions. When coated with a silicone based lubricate it will repel splashes of water to keep yourair filter dry. They are made from durable polyester material containing a uniform weave with stitched elastic openings. The AeroSkin's provide minimal restriction tothe airflow of the filter and can be cleaned with the filtercleaner.