Expedition RV Trailer Cover Fits 5th Wheel 37' -41' RVs Zippered Panels Let you access the front, Back and sides. Roll up and velcro into place. Measurements: 498"L x 102"W x 120"H Super Duty UV Fabric With Elastic Corners. Quick Release Buckles Vented Triple Layer Roof allows the moisture out , while keeping the dryness in. Marine grade tie down loops.