Osprey Nebula 32 vs. Osprey Tropos 32
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Osprey Nebula 32 | 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 | ||
| 16in | 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 | |
| 420D recycled nylon, PFAS-free DWR | bluesign® APPROVED 210D recycled honey comb contrast nylon, PFAS-free DWR |
Key differences between the Osprey Nebula 32 and Osprey Tropos 32
- Opening: Clamshell on the Osprey Nebula 32; Other on the Osprey Tropos 32.
- Hip belt: Removable on the Osprey Nebula 32; Yes on the Osprey Tropos 32.
- Laptop sleeve: 16in on the Osprey Nebula 32; 15in on the Osprey Tropos 32.
- Main compartments: 3 on the Osprey Nebula 32; 4 on the Osprey Tropos 32.
- Water resistant: Yes on the Osprey Nebula 32; No on the Osprey Tropos 32.
Both have: compression straps, passport pocket, backpack straps, sternum strap, 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 32, and 2 accept only the Osprey Tropos 32.
Only the Osprey Nebula 32 fits
Croatia Air.
Only the Osprey Tropos 32 fits
Island Air, Sun Country.
Osprey Nebula 32 vs. Osprey Tropos 32: which should you pack?
The Osprey Nebula 32 carries the same capacity as the Osprey Tropos 32 (32L vs. 32L), while the Osprey Nebula 32 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 32; if you want to travel lighter, the Osprey Nebula 32 is the better call.