Weather stripping for the T - Top,
If you can find it, get GM !!
1A Auto has a reasonably priced set, but it doesn't last 7 years. Ours was garage kept f I r 10 years when we were not driving it, and it's cracking and separating at junctions where the rubber was added to make it longer.
I wiped them occasionally to keep them from doing g just that.
GM can not be beat.