Osprey Aether 55 vs. Nemo Equipment Persist Womens 45L
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Osprey Aether 55 | Feature | Nemo Equipment Persist Womens 45L |
|---|---|---|
| Storage | ||
| >5 | Compression | 5 |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| top | Passport | top |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside | ||
| N | Laptop | N |
| 4 | Main Compartments | 8 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| Y | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| bluesign® APPROVED 420HD nylon packcloth, PFC-free DWR | 300D/900D ripstop weave |
Nemo Equipment Persist Womens 45L
| Capacity | 45 L |
| Weight | 1.6 kg |
| Dimensions | 64×34×33 cm |
| Airline fit | 1% |
| Price | $260 |
Key differences between the Osprey Aether 55 and Nemo Equipment Persist Womens 45L
- Compression straps: >5 on the Osprey Aether 55; 5 on the Nemo Equipment Persist Womens 45L.
- Main compartments: 4 on the Osprey Aether 55; 8 on the Nemo Equipment Persist Womens 45L.
- Rain cover: Yes on the Osprey Aether 55; No on the Nemo Equipment Persist Womens 45L.
Both have: passport pocket, backpack straps, hip belt, sternum strap, 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. 1 accept both. Every airline that takes one takes the other.
Osprey Aether 55 vs. Nemo Equipment Persist Womens 45L: which should you pack?
The Osprey Aether 55 carries 10L more than the Nemo Equipment Persist Womens 45L (55L vs. 45L), while the Nemo Equipment Persist Womens 45L is the lighter pack at 1.6kg (vs. 2.2kg). For carry-on flexibility, the Osprey Aether 55 fits 1% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Aether 55; if you want to travel lighter, the Nemo Equipment Persist Womens 45L is the better call.