Vortex Deluxe 37 38 39 40 ft Class A Motor Home Motorhome Cover, 110" wide, 120" tall, 3 layer top, single layer sides, zippered access side panels (FAST SHIPPING - 1 TO 4 BUSINESS DAY DELIVERY) Fully polypropylene fabric repels rain yet vents inside vapor out Easy On/Easy Off Cover designed to protect your investment from Mother Nature Superior water resistant yet breathable to prevent mildew inside of the fabric Full 800# support, 1-800-309-5190 (Real People, Real Answers) Full-Height zippered panels allow complete access to the door side and rear