I have no idea why this is having me review a purse organizer like a pair of shoes, but I'm game.  It works perfectly in my Fossil handbag.  The handbag has only the typical two small side pockets on the interior with a slightly larger interior zip pocket on the other side.  The center of the purse is just a mystery zone.  Everything just got tossed together.  This organizer is perfect and easy to move from one bag to another.  Lots of pockets of different sizes, some with zippers.  Great organizer, no arch support.