I have two.
A Covercraft Technalon and a Car Motorsports.
The covercraft is the same as a Wolf Evolution,and not sure what it crosses over to in California's line.The material it is made of is all the same I believe and quite a few different companies make covers using the "technalon" material.I like this particular cover for indoors.The cover is thick and soft and has yet to leave any type of scratch due to the cover.I have bumped the car with tools and whatever else you can happen to bump into it with in the garage and have failed to leave a mark.A couple were the ,"Boy I can't believe I got away with that variety".Good cover.The bad is if it gets wet.It is not a good outdoor cover.It is big and wads up in the size of a tree.Occupies the whole trunk.Now picture a wet tree and what are you going to do with it?Not in my trunk.The only other down to the cover(as far as outdoors) is it dosen't quite go down far enough.It covers all the car quite well,but only makes it to about mid-wheel.So rain splashes up on the wheels and mutts them up.
Now the Car Motorsports is the exact opposite,and why I have two covers.It is light,bundles up much smaller,and covers all of the wheel.It is good for outdoors in this respect.No scratches yet to report because of this cover as well.The only bad to the cover is it is VERY thin.No ding protection.It is a little more rain resistent though neither of these are really "waterproof".
I was actually contemplating trying another cover from covercraft that says it is waterproof just to see.Here in FL the nice showers come through in about ten minutes and get followed by bright sun.Great for waterspots.I have to stop work and go out and chamois it off only to repeat the process maybe twice more in the day.That gets old.Anyways that's my review on the covers that I own.HTH