Review on RV Door Window Cover Shade - Double-Sided 16 x 25 - Travel Trailer Reflective Window Shade Regulates Temperature - RV Window Coverings Protect Your RV from UV Rays - Easy to Install Sun Shade by Ryan Olsen

Fits perfectly on the camper door. It comes with six Velcro strips that you can peel off the back and stick on if needed. I used to have two on top and two on bottom and it was good enough for me. Remove and install the back cover. It's covered in silver reflective material on both sides, so you can't go wrong with the installation. This protects from the sun and preserves privacy. I also liked the comment from other reviewers about using one of these to cover a bathroom fan for the same purpose. With a simple velcro installation this works perfectly and keeps the temperature there which is very important as we just got out of the excessive heat on our trip a few days ago. At around $17 I'd say it's pretty reasonable.