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It’s been a long week filled with late nights and a lot of thinking. But luckily, we were able to finish the first prototype yesterday. Yay!

I got to say, it’s definitely something new in our arsenal. There are so many things you can add to this type of bag. So many. But as usual, we tried to keep it as simple as possible, while at the same time looking for a way to utilize the available space as best as possible. That being said, it’s still the most technically challenging bag we ever did so far. Alright, let me take you on an Invisible Carry-on tour:


Minimal, as promised. The biggest focus point for our second prototype will be to fine tune the proportions and some smaller details. As we were working on this bag, we found it a bit too big, so we made it smaller. Our goal will be to find a good middle ground for the final version.


As you can see, we will use zipper pullers to for the bigger compartments. The zipper heads we normally use would be a nightmare on a structure like this.


This bag has 4 big openings:

  1. Front pocket (more about that further down the post)
  2. Main compartment. To access it, you will need to unhook one of the side flaps. For safety, you can hide the main compartment zippers under the flap. Both work together to create a “wtf” moment for anyone unfamiliar with it, which is a good deterrent for unauthorized access.
  3. A zipper that expands or contracts the bag
  4. Laptop compartment.


    Clean back, with a soft plastic plate in the middle for better structure. Don’t worry, you won’t feel it and can bend it however way you want.


    In this picture, you see the side handle and an opened side flap. We chose to use hooks (which we don’t have yet). They’re durable, small, and easy to use. The best option for this particular opening. As a side bonus, you should be able to attach something to the side like in our very first backpack.

    We thought about magnets. The problem is that all of them are made in a way that makes them face upwards. We need them to face downwards. Oh well, less plastic, more metal.


    The front flap pocket. Oh boy. Seems simple? It’s not. I mean, the pocket itself is simple and great, but making it is not. It’s kind of a defining feature of this bag. Normally, the side flaps would be sewed onto the sides as a decorative feature, but in this case, they are one continuous fabric, which wraps around the bag. This gives you more space, and a much sleeker finish.

    At first, we thought about making two separate side flap pockets. But there are already a lot of zippers, so we decided to make it a single compartment.


    A separate padded laptop compartment. It should easily fit even the biggest 15” laptop. We will know the exact dimensions when we refine the bag’s proportions.


    The top drop-in pocket. What’s cool about it? It has a false bottom (i.e. another pocket inside the drop-in pocket). We call it the Rodney in honor of Rodney and his suggestion in the comments. It’s a great place to keep small valuable things (cash, passport, etc.) out of reach and out of sight.


    The bottom drop-in pocket. Use it for snacks or whatever.


    The main compartment with two mesh pockets on the lid. The straps you see are meant to keep something else we’re thinking of in place.

    INVISIBLE-CARRY-ON-10Side-handle in action.INVISIBLE-CARRY-ON-12

    As I mentioned before, we will be changing the proportions slightly. I can’t really comment too much on this right now. But as you would expect, this bag will be “meatier” than an average bag.