Exped Serac 25 vs. Mammut Aenergy 12
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Exped Serac 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 | |
| 420 D ripstop nylon, TPU film laminate, >10'000 mm water column | 100% Polyamide |
Key differences between the Exped Serac 25 and Mammut Aenergy 12
- Opening: Top flap on the Exped Serac 25; Clamshell on the Mammut Aenergy 12.
- Sternum strap: Yes on the Exped Serac 25; Removable on the Mammut Aenergy 12.
- Water resistant: Yes on the Exped Serac 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. 131 accept both. 0 accept only the Exped Serac 25, and 48 accept only the Mammut Aenergy 12.
Only the Mammut Aenergy 12 fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.
Exped Serac 25 vs. Mammut Aenergy 12: which should you pack?
The Exped Serac 25 carries 13L more than the Mammut Aenergy 12 (25L vs. 12L), while the Mammut Aenergy 12 is the lighter pack at 0.3kg (vs. 0.765kg). 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 Serac 25; if you want to travel lighter, the Mammut Aenergy 12 is the better call.