The Classic Accessories Overdrive PolyPRO3 tear drop trailer covers include thick, triple-ply PolyPRO3 top with breathable single-ply PolyPRO1 sides protects against rain, snow, dirt, nicks and scratches for all-season protection, An integrated air vent system combined with quick drying PolyPRO1 sides reduces wind stress and vents inside moisture, Includes one air vents on each side, Elasticized hem corners provide a custom fit, Side release buckles & straps with 2 connection points on each side to secure cover, Comes with a toss bag to reduce having to crawl under the RV, 4 zippers for access to rear and side panels during storage, Storage bag included, Three-year limited warranty.