Durable Classic Accessories PolyPRO 3 RV Covers provide streamlined, strong protection that stands out from the pack. PolyPRO3 fabric is a water-repellent 3-ply non-woven polypropylene that provides protection from bird droppings, snow, dirt, dust, scratches, and harmful UV rays. This cover is designed with adjustable tension panels and elasticized hem corners for a custom-like fit, while air vents reduce wind stress and inside moisture. The design also includes integrated straps and a toss bag system for quick installation. Zippered panels allow access to the RV doors and engine areas. Storage bags are included with all covers.• Thick triple-ply PolyPRO3 top defends your RV from rain, snow, dirt, and scratches for all-season protection• PolyPRO1 fabric on the cover sides for breathable, water-repellent protection• Air vents on both sides• Side zippered access panel• Adjustable front and rear tension panels• Elasticized hem corners• Integrated undercarriage strap system• Includes convenient storage bagNOTE: Designed to fit trailer body only. Not designed to cover trailer hitch. Not designed to entirely cover the wheels. Height is maximum recommended measurement from ground to roofline. POLYPRO 3 POP-UP RV COVERStable, th, td {border: 1px solid black; border-collapse: collapse;}th {text-align: left;}th {padding-left: 6px;}td {padding-left: 6px;} CW Item Model Length Width Max Height 118486 Model 3 16'-18' 100" 72" Zippered panel rolls up & allows access to the passenger side, RV doors & engine areas Adjustable front & rear tension panels & elasticized hem corners provide a custom like fit Integrated strap attachment system & a provided toss bag helps reduce crawling under the RV | Classic Accessories Over Drive PolyPRO 3 Deluxe Pop-Up RV Cover, Fits 16'-18' RVs