Triple layer SFS AquaShed top panel & triple layer two-tone polypropylene sides. Beads water on contact. Maximum resistance to high humidity & rainfall. Protection against harmful UV rays. Front & rear buckle cinching system. Removes slack. Bottom mounted strap/buckle system. Prevent loss to the wind. Triple layer polypropylene side panels. Insures maximum breathability. Virtually eliminates mold & mildew. Zipper entry panels. Easy access during storage. Weighted tie down assist for easy installation underneath the coach. Water resistant yet breathable. Reinforced front corners resist snags & tears. Moderate climates + short term storage