Believe me when I say that neoprene is a horrible choice for seat covers. It doesn't breathe well at all (therefore you'll sweat like no other), it fades big time with sun exposure, and it's just all around bad.
If you do your research you'll come to find that the best seat cover out there for the Wrangler TJ (it's very, very highly regarded) is the IGGEE seat cover. For $300 you can get a complete set (any color you want), they are synthetic vinyl, and they fit so good you'll think they are brand new seats (no joke).
http://rover.ebay.com/rover/1/711-5...0001&campid=5337789113&icep_item=110984046465
They have them in every color you want, just specify the color when you order it.
Also, for what it's worth eBay has the best prices on them. I searched high and low before I bought mine for the best price, and eBay had it.