When I pull the strap to fit lower the bag can be pulled around in front of me and sit open which makes for a great work surface. This is because of the way the zipper opening pulls back some of the fabric of the front of the bag leaving its overall profile slightly curved when closed. The fabric then does not simply bunch up at the opening, it sits open in more of a ‘V’ shaped opening which makes it easy to get to what I need. With many messenger style bags the weight of the bag will pull the m