--- url: "https://onebag.travel/compare/fzhy2kgdyt/osprey-sojourn-porter-travel-pack-46/n8ttb1wbeu/cotopaxi-allpa-travel-pack-42l/" title: "Osprey Sojourn Porter Travel Pack 46 vs Cotopaxi Allpa Travel Pack 42L" description: "Osprey Sojourn Porter Travel Pack 46 vs Cotopaxi Allpa Travel Pack 42L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by…" source: "https://onebag.travel/compare/fzhy2kgdyt/osprey-sojourn-porter-travel-pack-46/n8ttb1wbeu/cotopaxi-allpa-travel-pack-42l/" --- 1. [Home](https://onebag.travel/) 2. [Carry-On Travel Backpacks](https://onebag.travel/carryons/) 3. Osprey Sojourn Porter Travel Pack 46 vs. Cotopaxi Allpa Travel Pack 42L # Osprey Sojourn Porter Travel Pack 46 vs. Cotopaxi Allpa Travel Pack 42L Two carry-on travel backpacks, compared spec for spec. ## [Osprey Sojourn Porter Travel Pack 46](https://onebag.travel/carryon/fzhy2kgdyt/osprey-sojourn-porter-travel-pack-46/) by [Osprey](https://onebag.travel/carryons/?brands=Osprey) ![Front facing view of the Osprey Sojourn Porter Travel Pack 46](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990419/carryons/osprey-sojourn-porter-travel-pack-46-fzhy2kgdyt.webp)
Capacity46 L
Weight1.6 kg
Dimensions55×35×23 cm
Airline fit67%
Price$200
## Feature by feature | Osprey Sojourn Porter Travel Pack 46 | Feature | Cotopaxi Allpa Travel Pack 42L | | --- | --- | --- | | 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 PFAS100% recycled 840D TPU-coated nylon
## [Cotopaxi Allpa Travel Pack 42L](https://onebag.travel/carryon/n8ttb1wbeu/cotopaxi-allpa-travel-pack-42l/) by [Cotopaxi](https://onebag.travel/carryons/?brands=Cotopaxi) ![Front facing view of the Cotopaxi Allpa Travel Pack 42L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1621552508/carryons/Cotopaxi_Allpa_Travel_Pack_42L_e0l0ab.webp)
Capacity42 L
Weight1.4 kg
Dimensions56×36×27 cm
Airline fit2%
Price$250
## Key differences between the Osprey Sojourn Porter Travel Pack 46 and Cotopaxi Allpa Travel Pack 42L - **Compression straps:** 2 on the Osprey Sojourn Porter Travel Pack 46; No on the Cotopaxi Allpa Travel Pack 42L. - **Passport pocket:** Top on the Osprey Sojourn Porter Travel Pack 46; Front on the Cotopaxi Allpa Travel Pack 42L. - **Laptop sleeve:** No on the Osprey Sojourn Porter Travel Pack 46; 15in on the Cotopaxi Allpa Travel Pack 42L. - **Water bottle pockets:** No on the Osprey Sojourn Porter Travel Pack 46; 1, side on the Cotopaxi Allpa Travel Pack 42L. 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. 4 accept both. 123 accept only the Osprey Sojourn Porter Travel Pack 46, and 0 accept only the Cotopaxi Allpa Travel Pack 42L. ### Only the Osprey Sojourn Porter Travel Pack 46 fits Adria Airways, Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air Europa, Air France, Air India, Air Koryo, Air Macau, Air Mauritius, Air New Zealand, Air Nostrum, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Azul Linhas, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, British Airways, Brussels Airlines, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cebu Pacific, China Airlines, China Southern, CommutAir, Conviasa, Copa Airlines, Cubana de Aviacion, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Korean Air, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Onur Air, Peach, PenAir, Philippine Airlines, Porter Airlines, Qantas Airways, Republic Airways, Royal Air Morocco, SAS Scandinavian, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, SpiceJet, Spirit Airlines, SriLankan Airlines, Swiss Int'l Air Lines, TAAG Angola, TAM Airlines, Thai Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WOW Airlines. ## Osprey Sojourn Porter Travel Pack 46 vs. Cotopaxi Allpa Travel Pack 42L: which should you pack? The **Osprey Sojourn Porter Travel Pack 46** carries 4L more than the **Cotopaxi Allpa Travel Pack 42L** (46L vs. 42L), while the **Cotopaxi Allpa Travel Pack 42L** is the lighter pack at 1.4kg (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 Travel Pack 42L is the better call.