Inspired by our original Aeronaut, the Techonaut — two sizes: 45L (you are here) or 30L — is our largest airline carry-on backpack that combines style with ultimate functionality. Features include:
- Three carry methods: backpack, shoulder bag, and duffel
- Skeleton back panel for improved airflow
- Top-loading, suspended laptop compartment with exterior access, fits 17” laptops and more
- 1 spacious main compartment, 1 large end pocket, and 3 quick-access exterior pockets
- 6 O-rings for optional organizational bags and accessories
- Breathable, supportive back panel for long comfortable wear as a backpack
- Comfortable, durable, edgeless backpack straps that can be tucked away when needed
- Rolling luggage handle pass-through pocket
- Maximum carry-on size for most U.S. domestic airlines
Three Carry Methods
The Techonaut can be carried on the back via our comfortable EV50 Edgeless backpack straps. The back of the Techonaut has our special skeleton back panel rather than a solid rectangular piece of foam to improve airflow, so you can carry the Techonaut for long durations as a backpack in comfort. The soft and durable mesh (finished to our specifications) will also reduce the chance of the back panel causing abrasion to your clothes.
If you don’t want to use the Techonaut as a backpack, you can unbuckle the backpack straps and tuck them away behind the skeleton back panel. On the side of the Techonaut is our EV50 Edgeless grab handle, use it if you want to carry the bag like a duffel.
Add an optional shoulder strap (we recommend the Absolute Shoulder Strap) and turn the Techonaut into a shoulder bag.
Suspended Laptop Compartment
Suspended off the bottom of the bag, the Techonaut's laptop compartment offers just-right padding without adding bulk or weight. Don't plan to carry a laptop? Know that most of the padding and construction of the compartment would be there regardless to offer comfort to your back and structure for the bag itself. Accessible from an exterior zipper and separated from the rest of the main compartment, your laptop will always be easily accessible even when your bag is fully packed.
The Techonaut 45 laptop compartment will fit just about any laptop out there.
Skeleton Back Panel
The name says it all: instead of the back panel being a solid rectangular piece of foam, it’s cut in a spine-like shape so that it provides all of the usual comfort with less of the weight and improves airflow. We use a soft and durable mesh finished to our specifications on the part of the back panel that’ll be in contact with your clothes to reduce the chance of abrasion. No, this new back panel won’t ensure you don’t experience any sweat whatsoever if you run through the airport or hike uphill in the summer; that’s just an aspect of wearing a backpack and, well, being human.
Wide U-Shaped Main Compartment
The Techonaut takes the amazing wide-opening main compartment that made the Aeronaut one of the most beloved travel bags ever a step further: it opens even wider and even bigger. You can live out of this bag (and easily find what you're looking for) without ever having to unpack it.
Compared to the Aeronaut, it has one end pocket instead of two to increase the amount of stuff you can pack in the bag without increasing the size or weight of the bag.
Hideaway Edgeless EV50 1/2" Shoulder Straps
Conformity is overrated — except, perhaps, when it comes to shoulder straps. The edgelessness of this strap allows it to more softly conform to your shoulder; we find that this increases comfort. Yet the straps aren’t too soft: the 1/2” thick foam means the strap is robust enough to carry a heavy load.
If you plan to carry the Techonaut as a shoulder bag or in-hand like a duffel — or wear it through the airpot as a backpack and, at the terminal, tuck away the straps so it'll slide even more easily under the seat on the plane or in the overhead compartment — you'll appreciate that the backpack straps of the Techonaut can easily tuck away behind the back panel when not in use.
Edgeless Duffel Handle
The Edgeless duffel handle of the Techonaut is designed to provide comfort and cush when carrying the Techonaut in duffel mode: it utilizes the same EV50 1/2” / 12mm EVAZOTE® OEKO-TEX® foam as our Edgeless Shoulder Straps.
Since we figure most folks will primarily carry the Techonaut as a backpack or perhaps as a shoulder bag with the optional Absolute Shoulder Strap — and carry the bag as a duffel for shorter durations — we wanted its duffel handle to be as (if not more) comfortable yet somehow more minimal and lower-profile than the Aeronaut grab handle. We believe we’ve achieved our goal on both accounts: you’ll, of course, tell us what you think.
Note that, because of the design of the original Aeronaut handle, it was effectively anchored at four corners in such a way that it did not “lift” much from the bag itself; the Techonaut handle, to achieve its goals of comfort and minimalism, is anchored at two points, and may slightly lift away from the bag if your Techonaut is packed very full. That doesn’t impact the utility of the handle or experience of carrying the bag (and of course the handle itself is robustly secured with multiple bartacks) but we thought we’d mention it because it behaves a little different than the original Aeronaut handle.
Rolling Luggage Handle Pass-Through
Some of us use rolling luggage: maybe because we need to pack more formal attire for a work trip, photography gear, or just because we find it more comfortable. Good thing the Techonaut's back panel has a pass-through that allows you to slide it over the handle of your rolling luggage.
There are, of course, different sizes of rolling luggage with different handle lengths and widths. That said, the Techonaut 30 and Techonaut 45 should fit over most rolling luggage handles.
One End Pocket
Whereas the Aeronaut had two end pockets, the Techonaut has one. Here's why: removing one of the end pockets saved some weight and increased the overall capacity of the bag. Think of it this way: instead of the fabric and build that went into that second end pocket, you've got more space in the bag for more stuff. It also means the main compartment is that much bigger and opens up even wider.
Need to fit a really big item in the main compartment, or just don't want the division of the end pocket? You'll see that there's a zipper inside the main compartment that creates the division between it and the end pocket: simply unzip it and you've got one very big packing area.
Nik included three quick-access exterior pockets on the Techonaut.
The pocket on the right side of the bag is sized to fit a Passport, phone, wallet, and keys.
The pocket on the left side of the bag is the biggest; it can fit some water bottles or stuff like an umbrella or jacket.
And the pocket on the top of the bag can also fit stuff like a (smaller) water bottle, umbrella, or jacket.
Exterior Grab Handles
For your convenience, you’ll find two exterior grab handles on the Techonaut in addition to the Edgeless duffel carry handle. These grab handles work great for pulling the Techonaut out from under the seat of a plane or from the overhead compartment. They're also handy for steadying the bag as you insert your laptop in its compartment or even hanging the bag on a coat hook.
Removable Sternum Strap + Waist Strap
As with all of our major backpacks, we include adjustable and removable sternum and waist straps with leave-no-trace hardware: if you don't like or don't use your waist or sternum strap, remove them and leave (almost) nothing behind. There's also an optional 1" Padded Hip Belt and an optional Techonaut Internal Frame.
A Key Strap is a strip of webbing with plastic snaphooks on the end. The 8” Key Strap in Black that’s included in most of our larger bags is, for many, the gateway to a world of organization via Key Straps and Organizer Pouches. All the members of the Key Strap family are intended to make locating things in your bag easier and more instinctive. Pulling out a small item or pouch tethered to a strap is easier than rooting around aimlessly in the depths of your pack; you can also rest assured that anything hooked to a strap is much less likely to fall out or otherwise be left behind. You can find more Key Strap colors and varieties on the Key Strap page.
Some folks prefer metal zipper pulls. Others prefer cord pulls. So, what to do about that? We think the best solution (in most cases) is to offer metal pulls and include a starter pack of Cord Pulls with most bags. The most popular solution is to weave the Cord Pulls through the metal pulls, effectively silencing them without having to remove them. A video demonstrating various Cord Pull options and more colors/varieties of Cord Pulls can be found on the Cord Zipper Pulls page.
An adjustable and removable sternum and waist straps with leave-no-trace hardware: if you don't like or don't use your sternum strap, remove it and leave (almost) nothing behind.
A simple webbing waist strap that can offer extra stability when running to catch a bus, plane, or train. It can also add a small measure of support for a heavy load (for a truly supportive hip belt experience, please see the optional 1" Padded Hip Belt.) Also features leave-no-trace hardware.
One pair of Tie-Down Straps
Our included tie-down straps are an alternative to packing cubes: use them to compress and secure clothing in place to help keep it wrinkle-free. They're removable so if you don't want or need to use them, you can leave them behind.
If you plan to carry the Techonaut as a shoulder bag, this is the shoulder strap for you. Hands down, it's the most comfortable strap we've ever used.
The Skeleton back panel structure of the Techonaut adds a surprising amount of support even without an internal frame. Add a laptop in the laptop compartment and there's even more support. When the crew tested fully loaded Techonauts here at the factory, pretty much everyone found the internal frame for the Techonaut 30 unnecessary. With the Techonaut 45, it was 50/50: half of folks preferred carrying the bag with the frame, half preferred it without the internal frame. Still, we heard from many folks who wanted an internal frame option nonetheless... so here you go!
The 1" Padded Hip Belt allows you to carry some of the weight of a loaded pack on your hips rather than just your shoulders.
You can view all of our packing cubes, pouches, toiletries bags and other organizational options at the link above. Want a guide to what works best with the Techonaut 30 and Techonaut 45? Check out our blog post Techonaut: Packing Cubes & Organizational Options.
Cinched up your bag and you've got a lot of dangling straps? Well, if that's something that bothers your, grab a pair of strap keepers and manage those straps!
Choosing an Exterior Fabric
You like choices and we like to give you choices! Our Materials Glossary explains each fabric in great detail, but here are some quick facts that may help you decide which exterior fabric to choose.
630d High Tenacity Ballistic Nylon
- 2x2 “ballistic” weave
- 525 denier type 6,6 (high tenacity) filament nylon, twisted
- heavy urethane
- Made in:
- South Korea with Canadian yarn
Choose this fabric if
- You want your bag to be soft and supple yet tough as nails.
- You want a fabric that's stately enough to be at home at work, the mountains, or a nice hotel.
- You don't want your bag to collect pet hair or abrade your clothing.
1050d High Tenacity Ballistic Nylon
- 2x2 “ballistic” weave
- 1050 denier type 6,6 (high tenacity) filament nylon
- medium urethane
- Made in:
Choose this fabric if
- You want a super-tough fabric – originally designed for use in bullet-proof vests.
- The weight of your bag isn’t a huge concern (though it’s worth noting that 1050d Ballistic is still lighter than cotton canvas or leather).
- You want a smooth surface that won’t collect pet hair or sweater fuzz, slides easily into and out of the overhead bin, and fits in whether you're traveling for work or leisure.
- Miriam W.Verified BuyerBought For MyselfProduct Standouts Thoughtful Design, High Quality Craftsmanship, Sewn in USA, High Quality Finishings, Versatile1 year agoBought For MyselfProduct Standouts Thoughtful Design, High Quality Craftsmanship, Sewn in USA, High Quality Finishings, VersatileRated 5 out of 5 stars5 weeks in UK with Techonaut
I am a new customer and am loving this bag so far, one week into a 5-week UK adventure. The fabric is impressive: strong, lightweight, and beautiful. The zippers move smoothly and easily, clearly a superior product. I love the layout of the bag. My collapsible hiking sticks fit inside and I have packed my daypack in as well. The packing cubes fit perfectly into the two compartments of the bag, keeping clothes organized and easily accessible. Fully packed my bag was 21.5 pounds. I decided to check it rather than carry it on the international flight, but I believe it would have met carry on standards with a bit of repacking.
- Griffin S.Verified BuyerBought For MyselfProduct Standouts Sewn in USA, High Quality Craftsmanship, Good Storage Size, Thoughtful Design1 year agoBought For MyselfProduct Standouts Sewn in USA, High Quality Craftsmanship, Good Storage Size, Thoughtful DesignRated 5 out of 5 starsHighly Recommended!
The Techonaut 45 is an amazing bag. I had no problem fitting four days' worth of clothes in the main compartment and two pairs of shoes in the bottom compartment. The laptop pocket comfortably fit my 13.3 inch Macbook Air, and the side pocket comfortably fit my 40-ounce Hydroflask. Fully packed, the bag was easy to carry as a backpack (and I'm an objectively small person).
- Natalia E.Verified BuyerBought For MyselfProduct Standouts Thoughtful Design, High Quality Craftsmanship, Durable, Good Storage Size, High Quality Finishings1 year agoBought For MyselfProduct Standouts Thoughtful Design, High Quality Craftsmanship, Durable, Good Storage Size, High Quality FinishingsRated 5 out of 5 starsBit by the Tom Bihn Bug
We came across the Tom Bihn brand on YT bag review videos. I can't emphasize enough how right the reviewers were in their adoration for this brand. I have never owned a bag of such quality in my life. This bag will last me for many, many years and feels indestructible.
The straps are extremely comfortable and do not dig into my arms or shoulders. The opening of the bag is where it excels - you can pack it like a suitcase, with the sides that sit up and don't collapse, and fit enough for a long or short trip. The laptop compartment is great - no need for a sleeve. There is a pocket inside the bag I use for my flip flops, and I like the bottom compartment for my shoes. I also use packing cubes that I tie down with the internal straps, leaving plenty of room on top. I customize what I carry with a variety of Tom Bihn accessories. I've also added a photo of the bag sitting comfortably at my feet under the seat on an AA flight.
I can't speak highly enough of this bag, only to add that now my husband and daughter own one as well!
- Claudia L.Verified BuyerBought For OtherProduct Standouts Thoughtful Design, Comfortable, High Quality Craftsmanship, Compact, Good Storage Size1 year agoBought For OtherProduct Standouts Thoughtful Design, Comfortable, High Quality Craftsmanship, Compact, Good Storage SizeRated 5 out of 5 starsEuropean cobblestone alleys and train travels must have travel "luggage"
I have been traveling with Tom Bihn Aeronaut 30 and had convinced my husband to buy Techonaut 45 for our trip to Germany and Italy. It was the best recommendation ever, he said. We can't imagine pulling luggage on wheels in Venice, Parma, or Riomaggiore in Italy. And with flight delay problems and increased lost/delayed luggage throughout Europe and other parts of the world, I must say traveling with a carry-on like Techonaut 45 will help you avoid the current airline travel nightmare. The bag is lightweight and can accommodate a lot for a 3.5-week European trip.
- Justin R.Verified BuyerBought For MyselfProduct Standouts Thoughtful Design, Comfortable, High Quality Craftsmanship, Made in USA, Good Storage Size1 year agoBought For MyselfProduct Standouts Thoughtful Design, Comfortable, High Quality Craftsmanship, Made in USA, Good Storage SizeRated 5 out of 5 starsThe Best Travel Bag I've Ever Owned
I love bags, but it's rare that just thinking about one makes me light up. When I was searching for a good travel bag for multi-day solo trips, something that could double as a duffel when needed, I did a bunch of research. After making the rounds, I kept coming back to the Techonaut 45. Granted, I couldn't see it in person, but from what I could see from the images, videos and posts on the Tom Bihn forum, it seemed like the right balance of laptop storage (for a 16" laptop — which most bags I found can't accommodate), durability and storage.
When I unboxed it, I had a good feeling but I knew it wasn't until I could put it through the paces that I'd really know whether the leap I had taken was a good one. I packed it to the gills and flew to Portland for the weekend to meet up with a friend. From the moment I put it on my back, I knew I had made the right choice.
What astonished me whilst walking through the airport terminal was that for as heavy as the bag felt when lifting by one of the solid handles on the top or the side, when it was on my back it felt like half the weight was just...gone. The weight distribution and the padding on the straps is just right. It fit effortlessly into the overhead compartment on the plane, and once at the Airbnb, it was delightful to live out of — each item in its own pocket, clothes neatly packed in Tom Bihn travel cubes in the main compartment, even my bulky hiking boots neatly fit into the side compartment.
This bag is everything I…
Sewn in Seattle
Our bags are designed and sewn right here in Seattle, Washington, U.S.A.
That allows us to be control freaks in the best way possible; we have direct control and oversight of the quality of our materials, our products, and the jobs and working environment that we help create. It also offers us a unique spontaneity: when we have an idea for a new product or accessory, we can design it, figure out how to build it, add it to our website and be ready to ship it out our front door all within just a few weeks. How cool is that?
Intrigued? You can find out more about the unusual way we do business on our Company Philosophy page.
THE BIHN Guarantee
Everything you buy from us here at TOM BIHN is satisfaction guaranteed. We’ve been in business since 1972 and we stand behind what we make.
If something goes wrong and it's our fault, we'll fix it for free. Repairs due to normal wear and tear or due to other things that are not our fault will be performed, when possible, at a reasonable charge right here in our Seattle factory where your bag was made. Defects in materials or workmanship are uncommon and almost always evident while the product is still new. Keep in mind that bags and packs are often subject to extreme wear in everyday use: do not expect them to last forever. Only true love lasts forever! You can expect a TOM BIHN product to give years and years of hard service.