This vented two tone gray with white top cover is breathable, and resists to high humidity, offers moderate weather protection. It is made of 3 layer fabric top & 3 layer polypropylene sides. It fits for 40 foot 1 inch to 43 foot length coach & measures 43 foot length x 106 inch width x 132 inch height. It includes zipper entry panels, quick connect buckles, straps and buckles.