Legendary interiors. The leather can be a real pain to get correct. The foam has to be right. The leather is not as forgiving as the vinyl when it comes to imperfections.
Ask around town to find a good reputable upholsterer in your area to talk to. Check out car shows, etc. to find good work.
The guy that did the seats for my 71 was not impressed with the Legendary covers. He used the original leather inserts as a pattern and made new inserts for the seats. The surrounding vinyl pieces were still in good condition so they were reused.