Exped Core 25 vs. Mammut Aenergy 12
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Exped Core 25 | Feature | Mammut Aenergy 12 |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 3 | Opening | 1 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| 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 | N |
| Material | |
| 1680 D Ballistic nylon, PU coated, 1'500 mm water column | 100% Polyamide |
Key differences between the Exped Core 25 and Mammut Aenergy 12
- Opening: Top flap on the Exped Core 25; Clamshell on the Mammut Aenergy 12.
- Sternum strap: Yes on the Exped Core 25; Removable on the Mammut Aenergy 12.
- Water resistant: Yes on the Exped Core 25; No on the Mammut Aenergy 12.
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. 167 accept both. 0 accept only the Exped Core 25, and 12 accept only the Mammut Aenergy 12.
Only the Mammut Aenergy 12 fits
Air Niugini, American Eagle, Belavia, easyJet, Etihad Airways, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Virgin Australia, WestJet.
Exped Core 25 vs. Mammut Aenergy 12: which should you pack?
The Exped Core 25 carries 13L more than the Mammut Aenergy 12 (25L vs. 12L), while the Exped Core 25 is the lighter pack at 0.1kg (vs. 0.3kg). 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 Core 25; if you want to travel lighter, the Exped Core 25 is the better call.