---
url: "https://onebag.travel/compare/rzsc61ufe5/aer-pro-slim-pack/ttfp84t9n3/moment-everything-backpack-21l-overnight/"
title: "Aer Pro Slim Pack vs Moment Everything Backpack 21L Overnight"
description: "Aer Pro Slim Pack 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/rzsc61ufe5/aer-pro-slim-pack/ttfp84t9n3/moment-everything-backpack-21l-overnight/"
---
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3.  Aer Pro Slim Pack vs. Moment Everything Backpack 21L Overnight

# Aer Pro Slim Pack vs. Moment Everything Backpack 21L Overnight

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

## [Aer Pro Slim Pack](https://onebag.travel/carryon/rzsc61ufe5/aer-pro-slim-pack/)

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

![Front facing view of the Aer Pro Slim Pack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990323/carryons/aer-pro-slim-pack-rzsc61ufe5.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>13 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>43×31×10 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Feature by feature

| Aer Pro Slim Pack | Feature | Moment Everything Backpack 21L Overnight |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 3 | 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>840D CORDURA re/cor recycled nylon</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 Pro Slim Pack and Moment Everything Backpack 21L Overnight

-   **Opening:** Clamshell on the Aer Pro Slim Pack; Other on the Moment Everything Backpack 21L Overnight.
-   **Built-in organizer:** Yes on the Aer Pro Slim Pack; No on the Moment Everything Backpack 21L Overnight.

Both have: passport pocket, luggage passthrough, backpack straps, sternum strap, 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. 174 accept both. 5 accept only the Aer Pro Slim Pack, and 1 accept only the Moment Everything Backpack 21L Overnight.

### Only the Aer Pro Slim Pack fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

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

Air Niugini.

## Aer Pro Slim Pack vs. Moment Everything Backpack 21L Overnight: which should you pack?

The **Moment Everything Backpack 21L Overnight** carries 8L more than the **Aer Pro Slim Pack** (13L vs. 21L), while the **Moment Everything Backpack 21L Overnight** is the lighter pack at 0.8kg (vs. 0.9kg). For carry-on flexibility, the **Aer Pro Slim Pack** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Moment Everything Backpack 21L Overnight; if you want to travel lighter, the Moment Everything Backpack 21L Overnight is the better call.