Billlilngham 106 is one of the "press top" bags that has a snap tab on each end of the bag where the shoulder strap is attached to the bag. If this tab is released, the bag will extend upwards 2-3 inches, allowing more room for equipment, as well as stabilizing the bag opening to allow easier access. The bag has a padded insert with two sections, and another with velcro tabs . Both can be arranged as needed.