PRESS TOP FEATURE
The '7 series' (107, 207, 307 & 307L camera bags) have a distinctive rectangular opening feature, comprising of two specially shaped fibreglass and aluminium wands that hold the zipped, main compartment open. This is known as the 'Billingham Press Top' feature and is a similar style to a doctors 'Gladstone' bag.
The hinge between the wands either side is made of fabric to prevent users experiencing a mechanical failure and provide an easy and quicker opening than a typical doctors bag.
Photo from the 307 bag – the styling is the same but the width of the bag is noticeably smaller.