Since our Casita lives outside at a Coast Guard station air field in the Florida weather, I wanted the best protection I could find.
Calmark makes their covers with “Sunbrella” which is the best outdoor material I’ve found to date. It’s a little more expensive, but in my experience, it’s worth it.
My favorite feature is the zippered, roll up door opening. It gives me access to the camper without having to undo or remove anything.
Installing the cover alone on a windy day can be tricky. I bring a 4 foot step ladder to reach high enough to get the cover over the air vents and A/C unit.