Aer
Aer Travel Pack 3
$249Cheaper
Best Travel Backpacks · head-to-head
Aer Travel Pack 3 vs Tom Bihn Aeronaut 45
A sourced, side-by-side comparison. Aer Travel Pack 3 is cheaper at $249. Every spec and price links to its source.
Tom Bihn
Tom Bihn Aeronaut 45
$355
Which is better: the Aer Travel Pack 3 or Tom Bihn Aeronaut 45?
The Tom Bihn Aeronaut 45 wins 1 of the 1 specs we compare head to head; the other wins 0. The Aer Travel Pack 3 is the cheaper at $249. Get the Tom Bihn Aeronaut 45 for the stronger spec sheet, the Aer Travel Pack 3 to spend less.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Aer Travel Pack 3 |  Tom Bihn Aeronaut 45 |
|---|---|---|
| US price | $249 | $355 |
| Brand | Aer | Tom Bihn |
| Released | — | — |
| Capacity liters | 35 | 45 |
| Weight (lb) | 4.12 | 2.94 |
| Laptop size (in) | 16 | — |
| Carry on compliant | Yes | Yes |
| Material | 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware | 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers |
| Warranty years | 99 | 99 |
| Dimensions (in) | 21.5 x 13 x 9 in | 21.9 x 14 x 9.1 in |
| Release | — | — |
Sources — Aer Travel Pack 3: aersf.com (verified 2026-11-05). Tom Bihn Aeronaut 45: tombihn.com (verified 2026-11-05).
What's the difference between the Aer Travel Pack 3 and Tom Bihn Aeronaut 45?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Capacity liters: Aer Travel Pack 3 35 vs Tom Bihn Aeronaut 45 45
- Weight (lb): Aer Travel Pack 3 4.12 vs Tom Bihn Aeronaut 45 2.94
- Material: Aer Travel Pack 3 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware vs Tom Bihn Aeronaut 45 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers
- Dimensions (in): Aer Travel Pack 3 21.5 x 13 x 9 in vs Tom Bihn Aeronaut 45 21.9 x 14 x 9.1 in