Many years back when I lived in the fine city of Liberty, MO I had a convertible that I had to park outside, the dang thing leaked like a mof@. Anyway, I bought a budget car cover for it from wallys or target, after 2 summers, the cover just disintegrated. The material was bit like Tyvek building wrap. I want to cover my winni as I have a few leaks to address in spring. I am on a tight budget so I thought I would make one out of Tyvek I found a similar product at Menards for $80 for 100 ft long and 10 ft wide. I cut a 20 ft length and gorilla glued some garden chair polyester bands (see yellow