Mine doesn't have a zipper, but I do believe that the handle is connected to the "locking device" (if that's what you call it; it's one of three "clamps" that keeps the bag shut). I haven't had any problems with it.

The only issue I have with it is that it gets scuffed up pretty easy, and after one trip, the black conveyor belt marks get on it (which I'm too lazy to get rid of). Then again, my bag bright orange.