"I own a few classic cars of which i have 'indoor' covers for. This is not by any means water proof, despite what it tells you on the box i also don't think it vents very well either, After rain car will be soaked even if left for a few days. If you are after a indoor 'dust cover' this will be perfect for the job, if you are looking for a water proof cover you will need to look elsewhere there is nothing water proof about it. So much so, carpets on car get soaked after every down pour give it a miss if its for your pride and joy. I am sure i could send back but its is now used as an indoor cover"