I bought the GM cover without actually looking at the material, I did not like the feel of it so I took it back to the dealer (325.00) later. I bought a different one on the internet and it an ok cover, great fit, but after leaving it on the car for a couple of day's it leave some kind of film on the car. So it extra work when I take it off. The car is garaged. I have a cloth cover on my 55 Chevy and do not have these issue's. That cover at today price's is about $1000.00 (ouch). That is a lot of car wash's.