I've been using Escape Gear seat covers almost a year and a half. They have kept countless toddler spills out of the ventilated seats. I really like them, however just took them off to treat the leather and found that they have discolored the seats. It appears the rubbing from getting in and out has caused some of the seat cover black to adhere to the brown leather (door side of front passenger and driver side). My initial treatment of Leatherique Rejuvenate did not do the trick. Anyone else have these issues? Hopefully this will help anyone in making a decision to by these.