Mammut Aenergy 12 vs. Exped Mountain Pro 20
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Mammut Aenergy 12 | Feature | Exped Mountain Pro 20 |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | 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 |
| N | Water Resistant | Y |
| Material | |
| 100% Polyamide | 420 D Oxford nylon, PU coated, 3'000 mm water column |
Exped Mountain Pro 20
| Capacity | 20 L |
| Weight | 1.12 kg |
| Dimensions | 50×29×17 cm |
| Airline fit | 92% |
| Price | $250 |
Key differences between the Mammut Aenergy 12 and Exped Mountain Pro 20
- Opening: Clamshell on the Mammut Aenergy 12; Top flap on the Exped Mountain Pro 20.
- Sternum strap: Removable on the Mammut Aenergy 12; Yes on the Exped Mountain Pro 20.
- Water resistant: No on the Mammut Aenergy 12; Yes on the Exped Mountain Pro 20.
Both have: backpack straps, hip belt.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 173 accept both. 6 accept only the Mammut Aenergy 12, and 0 accept only the Exped Mountain Pro 20.
Only the Mammut Aenergy 12 fits
American Eagle, easyJet, Great Lakes Airlines, Ravn Alaska, Regional Express, Virgin Australia.
Mammut Aenergy 12 vs. Exped Mountain Pro 20: which should you pack?
The Exped Mountain Pro 20 carries 8L more than the Mammut Aenergy 12 (12L vs. 20L), while the Mammut Aenergy 12 is the lighter pack at 0.3kg (vs. 1.12kg). For carry-on flexibility, the Mammut Aenergy 12 fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Exped Mountain Pro 20; if you want to travel lighter, the Mammut Aenergy 12 is the better call.