That's dependent upon the kit you buy. Most standard kits, which is what most of us here buy, are only leather on the seating surface itself. They use a high quality vinyl for the sides and areas that don't see much traffic. Same goes for most factory leather. My 2011 4Runner was the same from Toyota. It had vinyl on the sides and leather where you sit.Be careful what you buy from John Huey. Althought his price and service are excellent I am not overjoyed with the amount of vinyl used in the set I bought.