It's anti-UV and water-resistant. To ensure proper fitment, please take an accurate measurement of your RV.

[Durable Material]: Upgraded the top panel fabric to extra thick 5-ply non-woven fabric mixed with Anti-UV Composite and waterproof membrane, upgraded 110g non-woven fabric side protect against rain,snow and scratches. Reduces premature aging of RV and helps maintain resale value.

[More anti-aging]: Inner many waterproof Straps and Buckles at bottom are more anti-aging than the outsides

[Custom Fit]: Elasticized bottom corners for fast and easy fitting

[Easy Installation]: Weighted buckle toss-bag under for easy installation