Osprey Manta 34 vs. REI Co-op Trail 40
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Osprey Manta 34 | Feature | REI Co-op Trail 40 |
|---|---|---|
| Storage | ||
| 4 | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| Y | Sternum Strap | removable |
| Inside | ||
| N | Laptop | N |
| 4 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| Y | Rain-fly | Y |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| bluesign® APPROVED 100% recycled 210D high-tenacity honey comb contrast nylon, DWR treatments made without PFAS | 210-denier ripstop nylon |
REI Co-op Trail 40
| Capacity | 40 L |
| Weight | 1.2 kg |
| Dimensions | 56×30×23 cm |
| Airline fit | 47% |
| Price | $130 |
Key differences between the Osprey Manta 34 and REI Co-op Trail 40
- Sternum strap: Yes on the Osprey Manta 34; Removable on the REI Co-op Trail 40.
- Main compartments: 4 on the Osprey Manta 34; 5 on the REI Co-op Trail 40.
Both have: compression straps, passport pocket, backpack straps, hip belt, built-in organizer, rain cover, water bottle pockets, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 3 accept both. 0 accept only the Osprey Manta 34, and 85 accept only the REI Co-op Trail 40.
Only the REI Co-op Trail 40 fits
Adria Airways, Aegean Airlines, Air Asia, Air Astana, Air Europa, Air Koryo, Air Macau, Air New Zealand, Air Nostrum, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Atlas Global, Avianca , Azul Linhas, Bahamasair, Bangkok Airways, Biman Bangladesh, British Airways, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Southern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Cubana de Aviacion, Delta Airlines, Dragonair, EL AL, EVA Air, Finnair, Frontier Airlines, Garuda Indonesia, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Iran Aseman Air, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Korean Air, Kulula, Kuwait Air, Malaysia Airlines, Mango, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Philippine Airlines, Qantas Airways, Republic Airways, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Skywest, Inc., South African Airways, Southwest Airlines, SpiceJet, Spirit Airlines, SriLankan Airlines, Sun Country, TAAG Angola, TAM Airlines, Thai Airways, Trans States, Travel Service Airlines, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WOW Airlines.
Osprey Manta 34 vs. REI Co-op Trail 40: which should you pack?
The REI Co-op Trail 40 carries 6L more than the Osprey Manta 34 (34L vs. 40L), while the REI Co-op Trail 40 is the lighter pack at 1.2kg (vs. 1.4kg). For carry-on flexibility, the REI Co-op Trail 40 fits 47% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the REI Co-op Trail 40; if you want to travel lighter, the REI Co-op Trail 40 is the better call.