Not bad for the price. I've never been a fan of the Iggee covers, I much prefer the Wet Okole's.
Maybe if you hit them with a bit of steam they'll tighten up again. If you have a steaming iron you'll be able to do it, just be careful not to burn the covers.
I build Chrysler seats, including the SRT8 models, and we use a regular household iron on the vinyl and it's perfectly safe provided you don't stay in one place too long.