"Good Covers" for RV's?
Keeping it inside and used as a dust cover, maybe a good thing, but outside I doubt that there is any such thing. Most are paper based and don't do well in windy or wet conditions. The canvas ones rip and tear easily too.
If you go the cover route, plan on buying a new one more than once a year.
Just one guys opinion after 26 years as a RV person.
For the last 20, I have put them inside when not in use. Expensive?, yes!. Worth it?, yes! The pay off is in lower maintenance time and reducing the problems caused by weather.
"The Roadhouse" our Land Yachts name