Where was the adhesive? Mine had part of the strap stuck to itself which is why I wasn't sure it was adjustable at first glance. I felt like I was doing something wrong when I was trying to peel it apart to lengthen it. There is still a part underneath that I'm not sure is extra edgepaint or missing edgepaint...I wiped with cleaner and added a dash of clear edgecoat to be safe. It would bother me if it was on the bag vs strap for sure.It's leather. I would have brought mine home but there was some adhesive on the leather so they're ordering me a new one.