---
url: "https://onebag.travel/compare/8vbwldjs9p/ortlieb-velocity-design/tetv1w5oec/mammut-aenergy-12/"
title: "Ortlieb Velocity Design vs Mammut Aenergy 12"
description: "Ortlieb Velocity Design vs Mammut Aenergy 12: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/8vbwldjs9p/ortlieb-velocity-design/tetv1w5oec/mammut-aenergy-12/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Ortlieb Velocity Design vs. Mammut Aenergy 12

# Ortlieb Velocity Design vs. Mammut Aenergy 12

Two carry-on travel backpacks, compared spec for spec.

## [Ortlieb Velocity Design](https://onebag.travel/carryon/8vbwldjs9p/ortlieb-velocity-design/)

by [Ortlieb](https://onebag.travel/carryons/?brands=Ortlieb)

![Front facing view of the Ortlieb Velocity Design](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1630926961/carryons/Ortlieb_Velocity_Design_wf4hwh.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>23 L</td></tr><tr><td>Weight</td><td>0.88 kg</td></tr><tr><td>Dimensions</td><td>50×30×16 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$145</td></tr></tbody></table>

## 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 |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>PD620, PS620C</td><td>100% Polyamide</td></tr></tbody></table>

## [Mammut Aenergy 12](https://onebag.travel/carryon/tetv1w5oec/mammut-aenergy-12/)

by [Mammut](https://onebag.travel/carryons/?brands=Mammut)

![Front facing view of the Mammut Aenergy 12](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990380/carryons/mammut-aenergy-12-tetv1w5oec.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>12 L</td></tr><tr><td>Weight</td><td>0.3 kg</td></tr><tr><td>Dimensions</td><td>46×23×17 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$80</td></tr></tbody></table>

## 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.