yeah, Katzkin is good but pricey. I got some 'alright' ones off of eBay initially from a seller called seatcoversforless. They are cloth and have Grand Cherokee embroidered in the backs of the fronts. Both front and rear covers fit great and you can make them fit as tightly as you like.

 

http://www.precisionfit.com/

They really fit great and work great too. I carry an aluminum clip board box and once when it was raining really hard I tossed it onto the passenger seat like an idiot and the corner of the box made a small rip in the cover but it totally protected my leather. Paid for itself right then in my book.

A friend of mine likes those Wet Okolie seat covers. They are water proof neoprene.

http://www.wetokole.com/