Osprey Quasar 26 vs. Cotopaxi Allpa 35L
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Osprey Quasar 26 | Feature | Cotopaxi Allpa 35L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | front |
| Y | Passthrough | Y |
| Carry | ||
| hideable | Backpack | hideable |
| hideable | Hip Belt | hideable |
| Y | Sternum Strap | Y |
| Inside | ||
| 16in | Laptop | 15in |
| 4 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| 450D recycled polyester TPU coated | 100% recycled 840D TPU-coated nylon |
Cotopaxi Allpa 35L
| Capacity | 35 L |
| Weight | 1.3 kg |
| Dimensions | 56×30×25 cm |
| Airline fit | 26% |
| Price | $225 |
Key differences between the Osprey Quasar 26 and Cotopaxi Allpa 35L
- Passport pocket: Top on the Osprey Quasar 26; Front on the Cotopaxi Allpa 35L.
- Laptop sleeve: 16in on the Osprey Quasar 26; 15in on the Cotopaxi Allpa 35L.
- Main compartments: 4 on the Osprey Quasar 26; 3 on the Cotopaxi Allpa 35L.
- Water bottle pockets: No on the Osprey Quasar 26; 1, side on the Cotopaxi Allpa 35L.
Both have: luggage passthrough, backpack straps, hip belt, sternum strap, built-in organizer, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 27 accept both. 0 accept only the Osprey Quasar 26, and 23 accept only the Cotopaxi Allpa 35L.
Only the Cotopaxi Allpa 35L fits
Aegean Airlines, Air Astana, Air Nostrum, Atlas Global, British Airways, Conviasa, Copa Airlines, EL AL, Finnair, Frontier Airlines, Iran Aseman Air, Jet2, Kuwait Air, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Southwest Airlines, Spirit Airlines, Thai Airways, Travel Service Airlines, Uzbekistan Air, WOW Airlines.
Osprey Quasar 26 vs. Cotopaxi Allpa 35L: which should you pack?
The Osprey Quasar 26 carries 1L more than the Cotopaxi Allpa 35L (36L vs. 35L), while the Osprey Quasar 26 is the lighter pack at 1.3kg (vs. 1.3kg). For carry-on flexibility, the Cotopaxi Allpa 35L fits 26% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Quasar 26; if you want to travel lighter, the Osprey Quasar 26 is the better call.