Cotopaxi Allpa 50L Adventure Travel vs. REI Co-op Ruckpack 40
Two carry-on travel backpacks, compared spec for spec.
Cotopaxi Allpa 50L Adventure Travel
| Capacity | 50 L |
| Weight | 2 kg |
| Dimensions | 69×36×26 cm |
| Airline fit | 1% |
| Price | $300 |
Feature by feature
| Cotopaxi Allpa 50L Adventure Travel | Feature | REI Co-op Ruckpack 40 |
|---|---|---|
| Storage | ||
| N | Compression | 2 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| back | Passport | top, side |
| N | Passthrough | N |
| Carry | ||
| hideable | Backpack | hideable |
| hideable | Hip Belt | hideable |
| Y | Sternum Strap | Y |
| Inside | ||
| 16in | Laptop | 15in |
| 5 | Main Compartments | 5 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | Y |
| 1, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 100% recycled 840D TPU-coated nylon | recycled nylon shell |
REI Co-op Ruckpack 40
| Capacity | 40 L |
| Weight | 1.3 kg |
| Dimensions | 58×38×24 cm |
| Airline fit | 4% |
| Price | $159 |
Key differences between the Cotopaxi Allpa 50L Adventure Travel and REI Co-op Ruckpack 40
- Compression straps: No on the Cotopaxi Allpa 50L Adventure Travel; 2 on the REI Co-op Ruckpack 40.
- Passport pocket: Back on the Cotopaxi Allpa 50L Adventure Travel; Top, side on the REI Co-op Ruckpack 40.
- Laptop sleeve: 16in on the Cotopaxi Allpa 50L Adventure Travel; 15in on the REI Co-op Ruckpack 40.
- Rain cover: No on the Cotopaxi Allpa 50L Adventure Travel; Yes on the REI Co-op Ruckpack 40.
- Water bottle pockets: 1, side on the Cotopaxi Allpa 50L Adventure Travel; 2, side on the REI Co-op Ruckpack 40.
Both have: backpack straps, hip belt, sternum strap, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 1 accept both. 0 accept only the Cotopaxi Allpa 50L Adventure Travel, and 6 accept only the REI Co-op Ruckpack 40.
Only the REI Co-op Ruckpack 40 fits
Frontier Airlines, Island Air, PenAir, Southwest Airlines, Sun Country, Virgin America.
Cotopaxi Allpa 50L Adventure Travel vs. REI Co-op Ruckpack 40: which should you pack?
The Cotopaxi Allpa 50L Adventure Travel carries 10L more than the REI Co-op Ruckpack 40 (50L vs. 40L), while the REI Co-op Ruckpack 40 is the lighter pack at 1.3kg (vs. 2kg). For carry-on flexibility, the REI Co-op Ruckpack 40 fits 4% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Allpa 50L Adventure Travel; if you want to travel lighter, the REI Co-op Ruckpack 40 is the better call.