Cotopaxi
Cotopaxi Allpa 35L Travel Pack
$229Cheaper
Best Travel Backpacks · head-to-head
Cotopaxi Allpa 35L Travel Pack vs Aer Travel Pack 3
A sourced, side-by-side comparison. Cotopaxi Allpa 35L Travel Pack is cheaper at $229. Every spec and price links to its source.
Aer
Aer Travel Pack 3
$249
Which is better: the Cotopaxi Allpa 35L Travel Pack or Aer Travel Pack 3?
The Cotopaxi Allpa 35L Travel Pack wins 1 of the 1 specs we compare head to head; the other wins 0. The Cotopaxi Allpa 35L Travel Pack is the cheaper at $229. The Cotopaxi 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 | Cotopaxi Allpa 35L Travel Pack | Aer Travel Pack 3 |
|---|---|---|
| US price | $229 MSRP; REI currently lists $230 | $249 |
| Brand | Cotopaxi | Aer |
| Released | — | — |
| Capacity liters | 35 | 35 |
| Weight (lb) | 2.93 | 4.12 |
| Laptop size (in) | 15 | 16 |
| Carry on compliant | No | Yes |
| Material | 100% recycled 840D TPU-coated nylon, 840D ballistic ripstop nylon bottom, recycled ripstop polyester lining | 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware |
| Warranty years | 99 | 99 |
| Dimensions (in) | 22 x 12 x 10 in | 21.5 x 13 x 9 in |
| Release | — | — |
Sources — Cotopaxi Allpa 35L Travel Pack: cotopaxi.com (verified 2026-09-21). Aer Travel Pack 3: aersf.com (verified 2026-06-15).
What's the difference between the Cotopaxi Allpa 35L Travel Pack and Aer Travel Pack 3?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Weight (lb): Cotopaxi Allpa 35L Travel Pack 2.93 vs Aer Travel Pack 3 4.12
- Laptop size (in): Cotopaxi Allpa 35L Travel Pack 15 vs Aer Travel Pack 3 16
- Carry on compliant: Cotopaxi Allpa 35L Travel Pack false vs Aer Travel Pack 3 true
- Material: Cotopaxi Allpa 35L Travel Pack 100% recycled 840D TPU-coated nylon, 840D ballistic ripstop nylon bottom, recycled ripstop polyester lining vs Aer Travel Pack 3 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware
- Dimensions (in): Cotopaxi Allpa 35L Travel Pack 22 x 12 x 10 in vs Aer Travel Pack 3 21.5 x 13 x 9 in