How is the weight of the vinyl material? The "Comfortweave" will feel lighter in weight as it is restamped, but the bolsters should feel relatively substantial.

I am installing a set of PUI covers in the '68 right now and they are not as heavy as the originals by any means, but are definitely not light and flimsy. A friend has a Mustang with some inexpensive repro seat covers that looked pretty good but the weave panel punched through from pocket contents.