... 5th wheel rv cover *Water resistant, UV stable, Air vent prevent mildew *Zippered panels allow easy access 5 th Wheel ... AccessAir VentFree Storage Bag Included Product Name5th Wheel RV CoverSize optional18'-20'x8'7"x9' ... cover, boat cover, boat seat, boat top, steering wheel covers, neck pillows, car floor mats,picnic bags, cooler ... testing by SGS to ensure premium quality. 5th wheel RV cover