Outdoor car cover rant

So I've been finding covers are getting thinner and more expensive. I bought a USA made cover craft $180 outdoor cover and measured it- .011" and also a cheap $37 eBay also .011"
These are supposedly outdoor uv resistant covers but I can pick up the box and feel the lightweight paper thin stuff that's inside.
The last cheap cover I bought had a hole in it within a month from sun damage.
Who makes a good cover and what does it cost? Cover craft prices go up to $550.
The Costco covers I used to get were 3x the weight these things are and lasted 1-2 years.

Can someone bust out the mic and check for me?
Covercraft... Ya just gotta pony up for the high$ ones, they are Heavy and will last as long as the warranty. 6yrs