I ordered the XL 204 for my 71 Nova and it fits great. I like the material as my last cover was not waterproof like this one. My old one froze to the car since it was not waterproof and it ripped several places getting it off. Since this one is waterproof I will not have that problem. This also has straps on the front and the back that clip together and pull tight. It is much better than my old one that just had loops and you have to find rope to tie it down. This makes it much easier to take it on and off. The straps in the front and back prevent the cover from blowing off, as they are in the correct place to prevent it from happening. My old car does not have big mirrors so I don't really need the big mirror pockets, but if you have them it they should work well.
Thin and no grommets on sides
I got this for my 1993 Chrysler Lebaron convertible.
The cover is very thin as a sheet of paper. There were not any grommets on the sides so you could run a cord under the car to keep the cover from flapping in the wind.
I had to use bungee cords around the front, back and sides of the car to keep it secure to the car as you can see in the pictures.
We will see how it holds up and will upgrade or downgrade the review accordingly.