and Brad's reply:
…I think you missed a simple but great feature of this bag: there are two buttons on each of the two dividers that keep the main compartment separate from the end pockets. Unbutton one or both dividers to enlarge the center compartment. This doesn't turn it into a briefcase meant for carrying papers but is a thoughtfull design to add versatility to a bag that's meant to do one thing exceptionally well: keep you traveling comfortably in style with one bag. I love my Aeronaut.