Patagonia Ascensionist Pack 55L vs. Exped Mountain Pro 40
Two carry-on travel backpacks, compared spec for spec.
Patagonia Ascensionist Pack 55L
| Capacity | 55 L |
| Weight | 1.28 kg |
| Dimensions | 67×32×20 cm |
| Airline fit | 1% |
| Price | $219 |
Feature by feature
| Patagonia Ascensionist Pack 55L | Feature | Exped Mountain Pro 40 |
|---|---|---|
| Storage | ||
| removable | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 3 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | Y |
| Inside | ||
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 420-denier 100% recycled nylon ripstop, 0-denier 100% nylon ripstop | 420 D Oxford nylon, PU coated, 3'000 mm water column |
Exped Mountain Pro 40
| Capacity | 42 L |
| Weight | 1.39 kg |
| Dimensions | 62×32×26 cm |
| Airline fit | 2% |
| Price | $190 |
Key differences between the Patagonia Ascensionist Pack 55L and Exped Mountain Pro 40
- Compression straps: Removable on the Patagonia Ascensionist Pack 55L; No on the Exped Mountain Pro 40.
- Opening: Other on the Patagonia Ascensionist Pack 55L; Top flap on the Exped Mountain Pro 40.
- Sternum strap: Removable on the Patagonia Ascensionist Pack 55L; Yes on the Exped Mountain Pro 40.
Both have: backpack straps, hip belt, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 2 accept both. 0 accept only the Patagonia Ascensionist Pack 55L, and 1 accept only the Exped Mountain Pro 40.
Only the Exped Mountain Pro 40 fits
Island Air.
Patagonia Ascensionist Pack 55L vs. Exped Mountain Pro 40: which should you pack?
The Patagonia Ascensionist Pack 55L carries 13L more than the Exped Mountain Pro 40 (55L vs. 42L), while the Patagonia Ascensionist Pack 55L is the lighter pack at 1.28kg (vs. 1.39kg). For carry-on flexibility, the Exped Mountain Pro 40 fits 2% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Ascensionist Pack 55L; if you want to travel lighter, the Patagonia Ascensionist Pack 55L is the better call.