Ortlieb Velocity Design vs. Mammut Aenergy 12
Two carry-on travel backpacks, compared spec for spec.
Ortlieb Velocity Design
| Capacity | 23 L |
| Weight | 0.88 kg |
| Dimensions | 50×30×16 cm |
| Airline fit | 92% |
| Price | $145 |
Feature by feature
| Ortlieb Velocity Design | Feature | Mammut Aenergy 12 |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 2 | Opening | 1 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | 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 | |
| PD620, PS620C | 100% Polyamide |
Key differences between the Ortlieb Velocity Design and Mammut Aenergy 12
- Opening: Rolltop on the Ortlieb Velocity Design; Clamshell on the Mammut Aenergy 12.
- Laptop sleeve: 15in on the Ortlieb Velocity Design; No on the Mammut Aenergy 12.
- Water resistant: Yes on the Ortlieb Velocity Design; No on the Mammut Aenergy 12.
Both have: backpack straps, hip belt, sternum strap.
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. 0 accept only the Ortlieb Velocity Design, and 6 accept only the Mammut Aenergy 12.
Only the Mammut Aenergy 12 fits
American Eagle, easyJet, Great Lakes Airlines, Ravn Alaska, Regional Express, Virgin Australia.
Ortlieb Velocity Design vs. Mammut Aenergy 12: which should you pack?
The Ortlieb Velocity Design carries 11L more than the Mammut Aenergy 12 (23L vs. 12L), while the Mammut Aenergy 12 is the lighter pack at 0.3kg (vs. 0.88kg). 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 Ortlieb Velocity Design; if you want to travel lighter, the Mammut Aenergy 12 is the better call.