I installed seat covers on my TA seats and my Drivers side cover is starting to form creases in the cover. The covers have been on a month or two. I'm wondering if since the edge where the crease is made of vinyl if i have to worry about it cracking and breaking there. If so any suggestions on what i can do. Here is a pic.
http://www.mustangmods.com/data/1787/seat_001.jpg

 

I would make sure that the cover is pulled tight around the foam. Otherwise, keep it cleaned and treated with a good leather conditioner.

 

I think i'm gonna try to tighten it up some this weekend. Its vinyl thats what makes me worry. If it was leather i wouldn't worry so much. Long story short is that its actually a GM factory pass. side cover that i put on the drivers side. So i installed it with the GM clips so i don't see anyway i can tighten it except to add foam. I'll see what i can do i guess.