No, I'm not talking about my muffin-top belly!! It's my epsom Birkin--There's this unsightly "fold" that's developing on the back side right beneath the points of the handles. And it also seems to bulge and have wrinkles along the sides. Is this just the curse of epsom due to its rigidity? No wonder epsom tends to be a little bit of a stepchild amongst its other rich leather siblings.