Osprey Nebula vs. Osprey Tropos 32
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Osprey Nebula | Feature | Osprey Tropos 32 |
|---|---|---|
| Storage | ||
| 4 | Compression | 4 |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| top | Passport | top |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | 15in |
| 3 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | N |
| Material | |
| MAIN: 420HD Nylon Packcloth BOTTOM: 420HD Nylon Packcloth | bluesign® APPROVED 210D recycled honey comb contrast nylon, PFAS-free DWR |
Key differences between the Osprey Nebula and Osprey Tropos 32
- Opening: Clamshell on the Osprey Nebula; Other on the Osprey Tropos 32.
- Hip belt: Removable on the Osprey Nebula; Yes on the Osprey Tropos 32.
- Main compartments: 3 on the Osprey Nebula; 4 on the Osprey Tropos 32.
- Water resistant: Yes on the Osprey Nebula; No on the Osprey Tropos 32.
Both have: compression straps, passport pocket, backpack straps, sternum strap, laptop sleeve, built-in organizer, water bottle pockets.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 24 accept both. 1 accept only the Osprey Nebula, and 2 accept only the Osprey Tropos 32.
Only the Osprey Nebula fits
Croatia Air.
Only the Osprey Tropos 32 fits
Island Air, Sun Country.
Osprey Nebula vs. Osprey Tropos 32: which should you pack?
The Osprey Nebula carries 2L more than the Osprey Tropos 32 (34L vs. 32L), while the Osprey Nebula is the lighter pack at 1kg (vs. 1.3kg). For carry-on flexibility, the Osprey Tropos 32 fits 14% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Nebula; if you want to travel lighter, the Osprey Nebula is the better call.