Thanks for your input guys. The windows were tinted the same week we bought the car. As far as a wear problem.... it's not. Her back does not touch that area of the seat. It probably is some type of in perfection in the hide itself. Going to make some calls and see what can be done.
1965 GT350S Shelby clone(my twisted version)
1964 1/2 Mustang convertible (under construction)
1967 GTA Mustang fastback ( needs total resto)
1967 Fairlane 500 Station Wagon