Inner mesh for TR47/TR36 side cases. Quick clips for opening and closing. Easy to remove or install with 3 Velcro points. Elastic material to adapt when the case is fully packed. Made from Polyester and POM Components. Even when installed it allows access points to gear inside of the case from the top, bottom and sides, which grants quick access to those hard to reach places. One piece included with the right side Terra cases, optional for the left side.