ADCO All Climate Designer Series – Now up to 40 percent more Tyvek RV. 5TH WHEEL CONTOUR-FIT 3 LAYER RV COVERS. The most durable ALL CLIMATE 5th Wheel cover on the market. DuPont Tyvek top panel, now with up to 40 percent more Tyvek fabric, provides maximum protection against the sun’s damaging U.V. rays. Extends below most awnings. 3-Layer High performance multi-color polypropylene sides insure maximum breathability. Passenger Side Zipper Entry Doors will accommodate any door location. Rear Zipper Entry to accommodate ramps on models 31 Feet and longer. Weighted strap and buckle attachments prevent billowing and are easier to install than ever. Reinforced, elasticized corners resist tears and snags. Vents have been added to reduce billowing. Rear cinching now uses straps and buckles. Polypropylene ladder cap for reinforcement. Storage bag. For proper fit, make sure to include bumpers, ladder and spare tire when measuring your trailer. You can exclude the hitch and ground clearance. Scaled to fit trailers up to 108 inch Wide and 126 inch Side Wall Height (excluding ground clearance). Made to accommodate roof-top accessories such as Air Conditioner. 2-year warranty. 37 feet 1 inch to 40 Feet, 486 inch L x 108 inch Weight x 126 inch Height.