This is what we used in the Wildcat as well as the National RV Pacifica motorhome that the Wildcat replaced. Nice thing is that when you want to remove it from the windows it rolls up or folds for easy storage. We used to do a quick fold and large window pieces and simply set them behind the couch. It makes a world of difference when camping in Texas summer heat as well as a great sunblock.
Shop Reflectix 25-ft x 48-in Reflective Insulation at Lowes.com
I appreciate all the kind words on our choice of RV. We shopped many different brands, manufactures, and various models. Wildcat seemed to offer more value for the dollar, the floor plan was what we wanted, and some personalized service and encouragement from our own Wildcat Chris made us feel comfortable in closing the deal.