This type of plastic is very durable, it almost seems washable.
It's much thicker than regular shrink-type window film.
Your fingernail is
not going to accidentally puncture this stuff.
I tested some, and it seemed to relax and expand a little under heat,
but came back to it's old size after cooling down. No change in the wrinkles.
It's overcast and rainy this morning, so you don't even notice the defects..