This specially designed storage cover for travel trailers is made by Classic Accessories. These covers have been sized to fit various lengths of travel trailers from less than 20 feet in length up to 33 feet in length. Full-height zippered panels let you enter the RV door, as well as access to the side and back. The cover has been designed to provide a custom fit around the nose and adjustable front and rear tension panels that give a snug and protective fit. Air vents diminish wind lofting and interior moisture. Unique rope tie down aid. Storage bag, rear ladder cap and tie down rope included. Elastic corners for fast and easy fitting. 3 year warranty. layer polypropylene top resists and repels rain and snow yet vents inside water vapor out. Prevents mold, mildew and ice buildup. Rugged U.V. resistant polypropylene fabric sides.