I have one of Bruce's lightweight covers. Its perfect for short duration uses and is not meant to be used for permanent tie down parking. We've used it in Las Vegas and Phoenix to keep the interior temperatures under control and to keep things from fading in the direct sun. It's one of the less expensive options and it's very high quality. If you're looking for something for long term usage they make a different cover for that as well.
VAF Donation made Feb 2018
RV-10 C-GNCX Flying and LOVING IT!