OK too late now.
Thanks for all the info.
I just ordered the Evolution from AutoGeek.
It really seemed like the best bang for your buck cover. It gets good reviews, etc.
I see there are 3 Evolution Covers they make. Not sure which one you opted for?
As far as I know, the Evolution type material has been around for a fairly long time, probably a material made by Kimberly Clark.
They are a laminated design I believe, consist of a number of bonded layers, either 3 or 4, the inner sandwiched material behaves almost like a Gortex fabric, in that it breathes, but the pores are supposedly too small to let rain through. Note how I say "supposedly".
Still, and in any event and with any cover placed over a Vehicle, and after it rains, it will be wise to immediately check the vehicle ASAP, and keep tabs on possible water being trapped in between the cover, and the vehicle. Water trapped like this can cause irreversable damage to the paint.
I would say any and all car covers that "breathe" will likely not be 100% waterproof. Water resistant yes, totally waterproof, perhaps not entirely, not even my TOTL Weathershield HD I would say is 100% waterproof. If they didn't breathe, then water in the form of trapped condensation would probably more easily occur.
Just some further tips and precautions. Follow the Cover's maintenance instructions to a T. Firstly, if it says the cover cannot be tumble dried, or only low heat, or no heat. there's a specific reason for this, and I'll explain later.
Two, do not use any sort of water-proofing chemicals, such as Scotchguard, 303 Fabric Protectant, and others like this. Firstly, it will hinder the breathability of the cover, and as well such chemicals will as I later assumed will irreversably damage the materials of the cover.
I believe that was what caused the ultimate death of my Covercraft NOAH cover, which at about the 2-1/2 year mark seemed to lose its water repellency. That I had sprayed the cover down with 303 Protectant and this product somehow chemically damaged the material, making it much more prone to tearing and then started to literally fall apart. I believe the NOAH is basically a TOTL Kimberly Clark Evolution Material, again, a Laminate type.
Lastly, if a hole or tear should ever occur, do not attempt a self repair with something like an Iron-On Patch. I also found this out the hard way, by taking a warm Iron to the material one day, and the material melted in a split second! Then I had an even worse hole to deal with. I suspect Nylon of some type is incorporated into such materials.
If such happens, Covercraft will either ask you to send the cover back, particularly if such occurred during warrantee and they'll determine the cause, and work with you to either initiate a repair, or replace the cover.
When that happened to myself, Covercraft sent me material to initiate a repair my end, sending a substantial amount of NOAH material free of charge.
I then sewed in patches where required with a Sewing Machine, I have Upholstery experience, but trust that trying to get a car cover under a smaller machine to sew certain areas was a total PITA.
At this point in time tough, and with such damages occurring, it clearly was time to replace the cover, it was basically toast.
Southern New Mexico was an extremely harsh environment, wicked with the triple digit heat in summer, sun and UV, high winds, dusts and a monsoon season where it basically storms every afternoon, but first the preclude was violent 35-45mph winds, and literal white out dust storms before the rains fell. Often the cover looked like an air balloon upon the vehicle, with lots of billowing, no matter how many tie downs I used. The additional Tie downs also began damaging the cover also because of the winds and the pulling stresses on the cover. Just too much for the NOAH to withstand.
Learned the hard way with these experiences, and thought I'd share them with you and others.