---
url: "https://onebag.travel/compare/qeexab796l/osprey-aether-55/t20q1jtv18/osprey-atmos-ag-65/"
title: "Osprey Aether 55 vs Osprey Atmos AG 65 - One Bag Travel"
description: "Osprey Aether 55 vs Osprey Atmos AG 65: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/qeexab796l/osprey-aether-55/t20q1jtv18/osprey-atmos-ag-65/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Osprey Aether 55 vs. Osprey Atmos AG 65

# Osprey Aether 55 vs. Osprey Atmos AG 65

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

## [Osprey Aether 55](https://onebag.travel/carryon/qeexab796l/osprey-aether-55/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>55 L</td></tr><tr><td>Weight</td><td>2.2 kg</td></tr><tr><td>Dimensions</td><td>83×38×25 cm</td></tr><tr><td>Airline fit</td><td>1%</td></tr><tr><td>Price</td><td>$325</td></tr></tbody></table>

## Feature by feature

| Osprey Aether 55 | Feature | Osprey Atmos AG 65 |
| --- | --- | --- |
| Storage |
| \>5 | Compression | Y |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| top | Passport |  |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| Y | Sternum Strap | removable |
| Inside |
| N | Laptop | N |
| 4 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| Y | Rain-fly | Y |
| 2, side | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>bluesign® APPROVED 420HD nylon packcloth, PFC-free DWR</td><td>Nylon</td></tr></tbody></table>

## [Osprey Atmos AG 65](https://onebag.travel/carryon/t20q1jtv18/osprey-atmos-ag-65/)

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

![Front facing view of the Osprey Atmos AG 65](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1617438946/carryons/Osprey_Atmos_AG_65_ibbsos.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>65 L</td></tr><tr><td>Weight</td><td>2.2 kg</td></tr><tr><td>Dimensions</td><td>87×41×39 cm</td></tr><tr><td>Airline fit</td><td>0%</td></tr><tr><td>Price</td><td>$269</td></tr></tbody></table>

## Key differences between the Osprey Aether 55 and Osprey Atmos AG 65

-   **Compression straps:** >5 on the Osprey Aether 55; Yes on the Osprey Atmos AG 65.
-   **Sternum strap:** Yes on the Osprey Aether 55; Removable on the Osprey Atmos AG 65.
-   **Main compartments:** 4 on the Osprey Aether 55; 3 on the Osprey Atmos AG 65.
-   **Water bottle pockets:** 2, side on the Osprey Aether 55; 2 on the Osprey Atmos AG 65.

Both have: backpack straps, hip belt, rain cover, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 0 accept both. 1 accept only the Osprey Aether 55, and 0 accept only the Osprey Atmos AG 65.

### Only the Osprey Aether 55 fits

Azul Airlines.

## Osprey Aether 55 vs. Osprey Atmos AG 65: which should you pack?

The **Osprey Atmos AG 65** carries 10L more than the **Osprey Aether 55** (55L vs. 65L), while the **Osprey Aether 55** is the lighter pack at 2.2kg (vs. 2.2kg). For carry-on flexibility, the **Osprey Aether 55** fits 1% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Atmos AG 65; if you want to travel lighter, the Osprey Aether 55 is the better call.