The M3 model has a really large external pocket with the zipper, another one with the button for small things, and zippered pocket with a compartment for the laptop inside. This model is distinguished from the previous ones by its smaller size, but it’s still enough for urban settings. The backpack has bright lining inside, as usual. We’ve decided to move our logo from the "cover" to the lining, in order to keep the simplicity and restraint. But you still can find our name on leather straps.