Nomatic has created the Swiss Army Knife of one bag travel backpacks, but I am not entirely sure that is a good thing. While there is 40l of room and even a shoe pocket, there are some flaws. The external material is essentially all weatherproof except for the front panel, which is the panel on the ground while the pack is in duffel bag mode. The laptop sleeve is also in the main compartment which does keep it well protected, but it’s quite tricky to access while on a plane or in a tight space. The waterproof water bottle pocket is a nice touch, but the pocket is limited in size and would not fit a larger water bottle. Nomatic did some nice things with the Travel Bag, but I think there are better options on the market.