Osprey Sojourn Porter Travel Pack 46 vs. Cotopaxi Allpa 35L
Two carry-on travel backpacks, compared spec for spec.
Osprey Sojourn Porter Travel Pack 46
| Capacity | 46 L |
| Weight | 1.6 kg |
| Dimensions | 55×35×23 cm |
| Airline fit | 67% |
| Price | $200 |
Feature by feature
| Osprey Sojourn Porter Travel Pack 46 | Feature | Cotopaxi Allpa 35L |
|---|---|---|
| Storage | ||
| 2 | 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 | ||
| N | Laptop | 15in |
| 3 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| bluesign® APPROVED, 100% recycled 460D high-tenacity nylon w/ ripstop, DWR treatment made without PFAS | 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 Sojourn Porter Travel Pack 46 and Cotopaxi Allpa 35L
- Compression straps: 2 on the Osprey Sojourn Porter Travel Pack 46; No on the Cotopaxi Allpa 35L.
- Passport pocket: Top on the Osprey Sojourn Porter Travel Pack 46; Front on the Cotopaxi Allpa 35L.
- Laptop sleeve: No on the Osprey Sojourn Porter Travel Pack 46; 15in on the Cotopaxi Allpa 35L.
- Water bottle pockets: No on the Osprey Sojourn Porter Travel Pack 46; 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. 49 accept both. 78 accept only the Osprey Sojourn Porter Travel Pack 46, and 1 accept only the Cotopaxi Allpa 35L.
Only the Osprey Sojourn Porter Travel Pack 46 fits
Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Canada, Air Caraibes, Air France, Air India, Air Macau, Air Mauritius, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, CommutAir, Czech Airlines, Delta Airlines, Dragonair, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Japan Airlines, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Norwegian, Peach, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Swiss Int'l Air Lines, Trans States, Turkish Airlines, United Airlines, Vietnam Airlines, Virgin Atlantic.
Only the Cotopaxi Allpa 35L fits
Croatia Air.
Osprey Sojourn Porter Travel Pack 46 vs. Cotopaxi Allpa 35L: which should you pack?
The Osprey Sojourn Porter Travel Pack 46 carries 11L more than the Cotopaxi Allpa 35L (46L vs. 35L), while the Cotopaxi Allpa 35L is the lighter pack at 1.3kg (vs. 1.6kg). For carry-on flexibility, the Osprey Sojourn Porter Travel Pack 46 fits 67% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Sojourn Porter Travel Pack 46; if you want to travel lighter, the Cotopaxi Allpa 35L is the better call.