1 • Shoulder straps
The shoulder straps are 5cm wide (the same as a car seatbelt) and fully adjustable. They are sewn into the bag so unlike the shoulderbags can't be changed.
2 • Grab handle
This is standard on the backpacks and makes it much easier to use as a briefcase and/or with a laptop.
3 • Main zipper
This is a robust YKK #10 zipper, the same weight used on suitcases.
The lining is also topstitched to prevent the zipper teeth getting caught.
4 • Internal dimensions
The internal dimensions are a little smaller due to the canvas lining.
The largest object that would fit is 33cm wide x 41cm tall (includes a 15" laptop).
5 • External zipper pocket & key loop
There is a double-zipped pocket on the outside with three internal pockets for pens, phones etc. I've recently added a small key loop and clip (the same as I use to secure the straps) for keys (especially useful when travelling for single hotel keys). .
6 • Reinforced base
The printed feature fabric panel is reinforced along the bottom edge to protect from wear and allow the pocket to expand as required.