The Professor Pack is a distinctively-shaped messenger bag that doubles as a tote bag as well. Fredrik Packers have come up with these new colorways, which are stylish as usual. The best feature of this bag is that the shoulder strap is made from the same as their ordinary messenger bags, and can be adjusted with one hand. However, there is also a small handle on the rim of the bag opening which can be used to turn the bag from a messenger bag into a tote bag. This make the bag more versatile as it can be used both on and off the bicycle. Currently, these are available at their online store and they are taking orders for custom color order at the moment as well.