AtticDefense ridge vent ensures dependable protection that provides continuous airflow throughout the attic. AtticDefense is a nylon-fiber mesh ridge vent that provides exceptional airflow. Designed to be the superior-choice among mesh ridge vents it's made of engineered nylon which feels sturdy and wire-like, versus more common soft mesh materials. It will not compress or flatten over time, nor will it breakdown and clog compared to naturally derived mesh materials that use coconut hulls and fabric covered vents. Compared to Quarrix's HDPE ridge vents, AtticDefense ridge vent is considered more flexible and lightweight, a value choice that delivers continuous ventilation for a cool and dry attic.