Cotopaxi
Allpa 35L Travel Pack
$229Cheaper
Best Travel Backpacks · head-to-head
Allpa 35L Travel Pack vs Aeronaut 45
A sourced, side-by-side comparison. Allpa 35L Travel Pack is cheaper at $229. Every spec and price links to its source.
Tom Bihn
Aeronaut 45
$355
Which is better: the Allpa 35L Travel Pack or Aeronaut 45?
The Allpa 35L Travel Pack wins 1 of the 1 specs we compare head to head; the other wins 0. The Allpa 35L Travel Pack is the cheaper at $229. The Allpa 35L Travel Pack both leads on specs and costs less — the straightforward pick.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Allpa 35L Travel Pack | Aeronaut 45 |
|---|---|---|
| US price | $229 MSRP; REI currently lists $230 | $355 |
| Brand | Cotopaxi | Tom Bihn |
| Released | — | — |
| Capacity liters | 35 | 45 |
| Weight (lb) | 2.93 | 2.94 |
| Laptop size (in) | 15 | — |
| Carry on compliant | No | Yes |
| Material | 100% recycled 840D TPU-coated nylon, 840D ballistic ripstop nylon bottom, recycled ripstop polyester lining | 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers |
| Warranty years | 99 | 99 |
| Dimensions (in) | 22 x 12 x 10 in | 21.9 x 14 x 9.1 in |
| Release | — | — |
Sources — Allpa 35L Travel Pack: cotopaxi.com (verified 2026-06-15). Aeronaut 45: tombihn.com (verified 2026-06-15).
What's the difference between the Allpa 35L Travel Pack and Aeronaut 45?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Capacity liters: Allpa 35L Travel Pack 35 vs Aeronaut 45 45
- Weight (lb): Allpa 35L Travel Pack 2.93 vs Aeronaut 45 2.94
- Carry on compliant: Allpa 35L Travel Pack false vs Aeronaut 45 true
- Material: Allpa 35L Travel Pack 100% recycled 840D TPU-coated nylon, 840D ballistic ripstop nylon bottom, recycled ripstop polyester lining vs Aeronaut 45 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers
- Dimensions (in): Allpa 35L Travel Pack 22 x 12 x 10 in vs Aeronaut 45 21.9 x 14 x 9.1 in