---
url: "https://onebag.travel/compare/ti7si2k4oi/aer-duffel-pack-3-x-pac/ttfp84t9n3/moment-everything-backpack-21l-overnight/"
title: "Aer Duffel Pack 3 X-Pac vs Moment Everything Backpack 21L Overnight"
description: "Aer Duffel Pack 3 X-Pac vs Moment Everything Backpack 21L Overnight: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ti7si2k4oi/aer-duffel-pack-3-x-pac/ttfp84t9n3/moment-everything-backpack-21l-overnight/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Aer Duffel Pack 3 X-Pac vs. Moment Everything Backpack 21L Overnight

# Aer Duffel Pack 3 X-Pac vs. Moment Everything Backpack 21L Overnight

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

## [Aer Duffel Pack 3 X-Pac](https://onebag.travel/carryon/ti7si2k4oi/aer-duffel-pack-3-x-pac/)

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

![Front facing view of the Aer Duffel Pack 3 X-Pac](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990321/carryons/aer-duffel-pack-3-x-pac-ti7si2k4oi.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>52×30×20 cm</td></tr><tr><td>Airline fit</td><td>88%</td></tr><tr><td>Price</td><td>$210</td></tr></tbody></table>

## Feature by feature

| Aer Duffel Pack 3 X-Pac | Feature | Moment Everything Backpack 21L Overnight |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| top, side | Passport | front |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 3 |
| Y | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>VX-42 X-Pac (also in 1680D Cordura)</td><td>420D Nylon Fabric</td></tr></tbody></table>

## [Moment Everything Backpack 21L Overnight](https://onebag.travel/carryon/ttfp84t9n3/moment-everything-backpack-21l-overnight/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>0.8 kg</td></tr><tr><td>Dimensions</td><td>47×29×15 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$150</td></tr></tbody></table>

## Key differences between the Aer Duffel Pack 3 X-Pac and Moment Everything Backpack 21L Overnight

-   **Passport pocket:** Top, side on the Aer Duffel Pack 3 X-Pac; Front on the Moment Everything Backpack 21L Overnight.
-   **Sternum strap:** Removable on the Aer Duffel Pack 3 X-Pac; Yes on the Moment Everything Backpack 21L Overnight.
-   **Main compartments:** 5 on the Aer Duffel Pack 3 X-Pac; 3 on the Moment Everything Backpack 21L Overnight.
-   **Built-in organizer:** Yes on the Aer Duffel Pack 3 X-Pac; No on the Moment Everything Backpack 21L Overnight.

Both have: luggage passthrough, backpack straps, laptop sleeve, water bottle pockets, water resistant.

## 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 Aer Duffel Pack 3 X-Pac, and 8 accept only the Moment Everything Backpack 21L Overnight.

### Only the Moment Everything Backpack 21L Overnight fits

Air Niugini, Belavia, Etihad Airways, Oman Air, Qatar Airways, Regional Express, Royal Jordanian, Virgin Australia.

## Aer Duffel Pack 3 X-Pac vs. Moment Everything Backpack 21L Overnight: which should you pack?

The **Aer Duffel Pack 3 X-Pac** carries the same capacity as the **Moment Everything Backpack 21L Overnight** (21L vs. 21L), while the **Moment Everything Backpack 21L Overnight** is the lighter pack at 0.8kg (vs. 1.3kg). For carry-on flexibility, the **Moment Everything Backpack 21L Overnight** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Duffel Pack 3 X-Pac; if you want to travel lighter, the Moment Everything Backpack 21L Overnight is the better call.