This backpack was designed for a Thinkpad W520 and it’s monstrous brick of a charger. The laptop sits on one of it’s short ends, and forms the structure of the soft leather bag. With a zipper up one side, the bag fits snugly around the top of the laptop, and widens at the bottom to just allow room for the laptop and charger.
The bag is perforated on the bottom and on the straps to allow adaptive use of the green leather cords that twine through it. On the bottom, they can be tightened to constrict the width of the bag (no charger) and on the straps, they can adapt to hold whatever needs carrying. At the moment, they hold a ring for keys. The straps can also be completely removed because every boyscout needs to carry string ;-)