One Bag Travel – Tom Bihn Aeronaut 45 Review


This is my Review of the Aeronaut 45 from Tom Bihn, I’ve had the bag for around six months and have used it on several trips all over the globe including Finnish Lapland, England, Singapore and Malaysia and Estonia

I’m really into backpacks and bags and I’m going to unashamedly geek out hard on this review as there’s so much to say. My passion for bags and backpacks should hopefully make for a thorough review and help you figure out if the Aeronaut is right for you.

Just a few caveats to note before I dive into the review:

– I travel with the mindset of a Backpacker not a “package tour” tourist
– Mobility is super important to me when I’m travelling, I travel as light as possible
– I prefer Hostels to Hotels
– I like to get involved with the local culture, not just stay by the pool

cuba for blog

The Aeronaut is a soft sided travel bag with a 45 litre capacity, It’s made from 1050 denier ballistic nylon for the exterior of the bag and Dyneema Ripstop on the inside.

The Aeronaut has five compartments accessible from the exterior, the main compartment and side compartments on each end with small stash pockets on the outsides.

The Main Compartment

One large zipper accesses the main compartment and the flap folds out of the way to make packing easier. The inside of the flap has a small mesh pocket that can be used for smaller items or dirty clothes that you want to keep separated.

aeronaut for blog post

The main compartment is pretty simple, it’s one large area with a set of removable compression straps at the bottom. I haven’t found the compression straps necessary yet but have left them in the bag.

A subtle but ingenious feature of the Aeronaut is the adjustable main compartment/side pocket dividers. At the bottom of the dividing wall between the main compartment and the side compartments is a zipper. This zipper can be opened to increase the capacity of the main compartment, useful if you’re carrying long items or want more space in the main compartment. Opening the zippers will obviously decrease the space inside the side compartments but It’s a great feature that makes the bag more customisable to your packing style.

aeronaut for blog post_2

A bag that’s square or rectangular in shape makes packing much easier and avoids unusable dead spaces. The Aeronaut is rectangular making the main compartment square when the dividers are up and rectangular when you unzip them.

I’ve been enjoying using the Packing Cube Backpack inside the main compartment, it’s designed to go with the Aeronaut 45 but when it’s loaded out it’s necessary to open the dividers. I usually lay it flat on the bottom then one or two medium packing cube on top of that, next comes my laptop inside it’s neoprene case and then a jacket on top of that to help keep the laptop protected.

The main compartment is easy to pack but if you need to quickly grab something from the main compartment when carrying the bag and moving around it can be tricky. I think its best to pack the main compartment with items you don’t need quick access to and put those items in the side pockets.

The End Pockets

aeronaut for blog post_3

I prefer carrying the Aeronaut in backpack mode so I take that into consideration when packing the bag. I put toiletries and more fragile items at the “top” of the bag so I don’t need to worry about damaging stuff when moving around and taking the bag on and of.

When the dividers have been opened the end pockets are wedge shaped but still have a surprisingly large amount of space.

The Stash Pockets

They don’t have a large amount of space if the end pockets are full and you can’t see what you’re trying to access when you open the zipper but they’re a great “catch all” type pocket. To try and speed things up when i’m in the security line at the airport I stash all my EDC items in one of these pockets along with my belt and any other items. Instead of standing in line complaining about how long the security lines are I wish more people would empty their pockets and save time…

The stash pocket and all other compartments in the bag have a small D-Ring that can be used with Tom Bihns’ Key-Strap system. The Key-Strap system uses different length lanyards with swivelling mitten clips at each end. They’re used to secure keys or any of the numerous Tom Bihn Organisers and accessories sold on their website.

One Key-Strap comes included with the Aeronaut and I’ve found it useful for attaching my keys when out of the country, this ensures I know where they are when I need them.

aeronaut for blog post_1

Carry Methods

One of the best features of the Aeronaut is the option to carry the bag in three separate ways, Shoulder Bag Mode, Briefcase Mode and Backpack Mode. There are also grab handles on each end of the bag, I don’t consider these a carry method, just an awesome feature to help move the bag around.

Shoulder bag mode

The Aeronaut comes with a basic shoulder strap but I upgraded to the Absolute Shoulder strap, a bombproof, flexible, comfortable, behemoth of a shoulder strap.

That being said, I don’t like carrying the bag in shoulder bag mode. If the bag is anywhere near full/heavy I find shoulder bag mode to be awkward and uncomfortable. If I’m rushing to the departure gate it’s bouncing around so then I need one hand to support it, then I trip over my feet, then I spill my Starbucks down my shirt.. You get the idea.

After the first few trips with the Aeronaut I removed the shoulder strap and left it at home.

Briefcase Mode

briefcase mode

Briefcase mode is great for moving the bag around and taking it in and out of taxis etc, It will get heavy quickly though. The Aeronaut has a very solid, comfortable handle and it’s been designed to be out of the way when packing and unpacking the bag unlike many similar bags.

Backpack Mode

backpack mode

I’m a backpack guy and probably always will be.

The Backpack Straps are really good, I guess I was pretty surprised, thinking they would be somewhat of an after-thought. They aren’t going to breathe as well as a hiking backpack but they’re comfortable and durable, there are no load lifter straps but there is a good sternum strap which I consider essential on any backpack.

The Backpack Straps stash away quickly and easily which is great if you want to use the bag in briefcase or shoulder bag mode and want a cleaner look. If you ever need to check the bag under the plane then stashing the shoulder straps away makes one less thing to get snagged up and damaged.

What the Aeronaut does really well:

Perfect size for medium/long trips

Travelling light is much easier when you have the appropriate luggage, the Aeronaut is big enough for the essentials but no so big that you bring unnecessary extras.

Easy to Carry/No Wheels

A few months back, whilst sipping coffee at a cafe in Brussels I watched a parade of Japanese tourists trying to drag their huge wheely bags along a cobbled street. They weren’t laughing or seeing the funny side of it, they were pissed. They were headed towards the railway station and I knew that it was at least another ten minute walk and the street was cobbles all the way

…No thanks…

Soft Sided

Soft sided bags have a number of advantages.

overhead compartment

  • They’re easier to fit into overhead storage compartments.
  • The material will give a little if you over pack and if you under pack they will take up less space.
  • They’re “unbreakable” – Aluminium suitcases are prone to dents, hard plastic cases are prone to cracking. Soft sided bags can be ripped or cut but I think it’s pretty unlikely.

Materials, build quality, looks

The bag uses all the best quality materials as you would hope, YKK oversized waterproof zippers and high quality fastenings. Tom Bihn uses 1050 denier ballistic nylon for the exterior of the bag, a tough fabric that has a refined look giving the bag a professional look. The interior lining of the pack uses Dyneema Ripstop which from previous experience I know to be extremely durable.

aeronaut for blog post_4

As you would expect from a company that makes all its products in small quantities in house the build quality is outstanding, all the zippers flow really smoothly and there isn’t a loose thread to be found.

With a bag like this, in this colour you’re going to stand out less than the average backpacker, which is a good thing. The bag looks smaller than it is which can act in your favour if the bag is overweight and you’re trying to bring it as a carry-on.

What the Aeronaut doesn’t do so well:

These points aren’t necessarily criticisms of the bag, everything in life has his limitations and these are some of the Aeronauts.

Short Trips

If you’re going on a trip less than three days then this bag is probably going to be too big. Go with something smaller and less cumbersome. My smaller “go to” option would be the Kelty Peregrine 1800, a daypack i’ll be reviewing in the future.

Trips that you might expect to go hiking on

Autosave-File vom d-lab2/3 der AgfaPhoto GmbH

This is not a hiking backpack, it can’t be expected to compete with the suspension and functionality of a dedicated hiking pack.

On longer trips I usually incorporate some hiking, If i’m going to be doing anything more than day-hiking then the Aeronaut will stay at home in favour of a hiking backpack such as the ULA Ohm 2.0 or my old faithful Osprey Aether.

Trips where you need a lot of stuff/First time backpackers

A 45 litre bag may not be suitable for extended trips where you need to have a lot of gear.

Camera gear, Scuba Diving gear, Camping gear, Fashion conscious female? Look elsewhere

With that being said I often like to carry the Aeronaut in conjunction with a smaller “personal item” such as my Maxpedition Fatboy GTG or the Kelty Peregrine mentioned above.

No Laptop Compartment

This is going to be a deal breaker for a lot of digital nomads.

Personally I just use a neoprene laptop sleeve and make sure when packing the main compartment of the bag that the laptop is protected on all sides by clothing.

Final Thoughts

Having used the Aeronaut extensively over the past six months and painstakingly researched the competition I’d say that the Aeronaut 45 is probably the best bag in it’s class.

It’s my go-to bag for travel and I’m excited to see if anything could knock it from the top spot in the coming years.

Checkout out the Tom Bihn Website to see all the awesome colours and options you can choose when ordering from them, if you spend a bunch of money don’t blame me.

Wow, so If you’ve made it all the way through this review then you probably like bags and backpacks and will probably love the Aeronaut 45 from Tom Bihn.

Or you’re my parents and you read everything I write.

Hi Mum and Dad.

Thanks for stopping by


4 thoughts on “One Bag Travel – Tom Bihn Aeronaut 45 Review

  1. […] Tom Bihn 45 – This will be my checked piece of luggage – Click here for the review [R...
  2. Cher Reply

    Thank for the awesome review of Tom Bihn Aeronaut 45. I stumbled across this bag via a simple google search for travel bags made here in the good old USA. At first I was astounded by the price of the price. Let’s be honest $300 is a lot of money to spend on a travel bag. But, after looking over a ton of reviews and the pros and cons. I’ve decided to try and get this bag. I’m going travel to Japan for two weeks and I was thinking exactly what you stated about dragging around a suitcase, I did that last year whenever I traveled to S. Korea and dragging around my luggage was hard on both my feet and my body. I also liked your review on the packing cube/backpack. I think that I’ll be getting that too, I like the functionality of having both a packing cube and backpack. Awesome reviews!

    1. Pie Reply

      Sorry for the late reply Cher. Did you pull the trigger on the Aeronaut? I totally agree that 300 dollars is a serious sum of money for a bag but I totally believe you get what you pay for with Tom Bihn. The quality and attention to detail really is second to none. How was your trip to Japan, I’ll be in Tokyo for the first time later this month 🙂

      Thanks for the kind words


  3. […] bag. I bring just hand luggage whenever the trip permits so I often stuff the Fatboy inside my Tom B...

Leave a Reply

Your email address will not be published.