Keep your travel trailer protected through storage season with the Classic Accessories PolyPRO3 Model 4 cover. Built for trailers 24 to 27 feet long with a maximum height of 118 inches, this three-layer cover blocks UV rays, sheds water, and actively vents interior moisture so you open up to a dry, undamaged rig every spring.
The PolyPRO3 line sits at Classic Accessories' mid-tier -- heavier and more durable than basic polypropylene covers, but still lightweight enough for a solo installer to handle. The three-layer laminate pairs a polypropylene outer shell with a breathable, moisture-wicking inner layer so condensation cannot build up against your trailer's sidewalls, roof seams, or slide toppers.
For trailers in the 24-to-27-foot class -- think Airstream Bambi Sport, Forest River Rockwood Mini Lite, Keystone Passport, or similar -- this cover delivers a tailored fit without the bulk or cost of a full custom cover. The adjustable tension panels front and rear, combined with elasticized hem corners, pull the cover snug regardless of whether your trailer runs toward the short or long end of the size range.
Polypropylene outer shell with breathable middle layer and soft inner lining protects paint and decals from abrasion during installation and wind movement.
Built-in roof vent reduces interior condensation and prevents wind lofting that can stress cover seams and allow water entry at the hem.
Four connection points per side give eight total anchor locations, letting you run rope under the trailer frame to hold the cover securely in wind-prone storage spots.
The included weighted toss bag lets you throw the rope across the trailer and pull it through without crawling under the rig -- a real convenience when working solo.
The outer layer is solution-dyed polypropylene -- UV inhibitors are built into the fiber, not just a surface coating that washes off over time. This handles four key threats your trailer faces in outdoor storage:
Getting a cover to stay put on a 26-foot trailer without ladder-climbing every windy night is what separates a good cover from a frustrating one. Classic Accessories built three adjustment mechanisms into the PolyPRO3 Model 4:
The PolyPRO3 Model 4 is designed to be installed by one person, though a second set of hands speeds the process significantly on a longer trailer.