Tom Bihn Aeronaut 45

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tldr; The Tom Bihn Aeronaut 45 receives mostly positive reviews on Reddit (77% positive across 35 mentions). A solid choice in its category.

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Sentiment Breakdown

49%Positive
Positive
49%
Neutral
37%
Negative
14%
Based on 35 Reddit opinions

Strengths & Weaknesses

Each axis shows what % of Reddit comments are positive about that topic. Higher = more praise.

Key Features

  • Versatile 3-in-1 carry options: backpack, shoulder bag, duffel.
  • Carry-on compliant for most major airlines.
  • Spacious 45-liter capacity for extended trips.
  • Durable construction with high-quality ballistic nylon or Cordura.
  • Multiple compartments for organized packing and easy access.

Sentiment Over Time

50%75%100%May '25Jun '25Aug '25Oct '25100% (May '25) - 1 comments50% (Jun '25) - 1 comments50% (Aug '25) - 1 comments100% (Oct '25) - 1 comments

What Redditors Actually Say

What Redditors Say

Best praise vs top criticism for Tom Bihn Aeronaut 45

Best Praise
+4 pts
Tom Bihn Aeronaut 45 - I’ve travelled with it as hand luggage for over 10 years. In portfolio mode it looks tiny. I use compression packs to make it look as thin as possible. Now one has ever weighed it. I keep it from 7-8kg usually. Of course never fill it up unless I need to check it in. I’ve only done that for a long trip when soft pack was mandatory and it was 15kg.
r/onebag
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Top Criticism
+2 pts
The Porter 46 is definitely a travel bag. It has a side handle and D-rings to attach a shoulder strap, but trust me, I wouldn't carry the bag that way. I have used the Tom Bihn [Absolute Shoulder Strap](https://www.tombihn.com/products/shoulder-straps?variant=16664457159) on the Aeronaut 45, and while the strap is excellent, carrying that large bag duffel style was not a pleasant experience. It's just too much weight swinging off of one shoulder. I even tried it sling style and the experience wasn't any better. After about 4 or 5 trips, I gave up on the bag. I would order the framesheet and the hip straps for the bag, but at this point I've move on to smaller and lighter bags when traveling.
r/Backpacks
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13 more quotes available below

Frequently Asked Questions

Is the Tom Bihn Aeronaut 45 worth buying?
The Tom Bihn Aeronaut 45 receives mostly positive reviews on Reddit (77% positive across 35 mentions). A solid choice in its category.
What do Redditors love about the Tom Bihn Aeronaut 45?
Common praise includes: "Tom Bihn Aeronaut 45 - I’ve travelled with it as hand luggage for over 10 years. In portfolio mode it looks tiny. I use compression packs to make it look as thin as possible."
What are the downsides of the Tom Bihn Aeronaut 45?
Some criticisms include: "Gotcha. I'm a bit torn. I have a Tom Bihn Aeronaut 45. The issues I have are minor but they're bothersome still... 1."
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Tom Bihn Aeronaut 45 has 35) tend to have more reliable scores.

35 Reddit opinions analyzed • Last updated 5/26/2026