---
url: "https://onebag.travel/compare/ttfp84t9n3/moment-everything-backpack-21l-overnight/yus68z87z8/moment-everything-backpack-17l-overnight/"
title: "Moment Everything Backpack 21L Overnight vs Moment Everything Backpack 17L Overnight"
description: "Moment Everything Backpack 21L Overnight vs Moment Everything Backpack 17L Overnight: capacity, weight, dimensions and how many airlines accept each as a…"
source: "https://onebag.travel/compare/ttfp84t9n3/moment-everything-backpack-21l-overnight/yus68z87z8/moment-everything-backpack-17l-overnight/"
---
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3.  Moment Everything Backpack 21L Overnight vs. Moment Everything Backpack 17L Overnight

# Moment Everything Backpack 21L Overnight vs. Moment Everything Backpack 17L Overnight

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

## [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>

## Feature by feature

| Moment Everything Backpack 21L Overnight | Feature | Moment Everything Backpack 17L Overnight |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | N |
| Inside |
| 16in | Laptop | 14in |
| 3 | Main Compartments | 3 |
| N | 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>420D Nylon Fabric</td><td>420D Nylon Fabric</td></tr></tbody></table>

## [Moment Everything Backpack 17L Overnight](https://onebag.travel/carryon/yus68z87z8/moment-everything-backpack-17l-overnight/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>17 L</td></tr><tr><td>Weight</td><td>0.7 kg</td></tr><tr><td>Dimensions</td><td>42×26×15 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$150</td></tr></tbody></table>

## Key differences between the Moment Everything Backpack 21L Overnight and Moment Everything Backpack 17L Overnight

-   **Sternum strap:** Yes on the Moment Everything Backpack 21L Overnight; No on the Moment Everything Backpack 17L Overnight.
-   **Laptop sleeve:** 16in on the Moment Everything Backpack 21L Overnight; 14in on the Moment Everything Backpack 17L Overnight.

Both have: passport pocket, luggage passthrough, backpack straps, 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. 175 accept both. 0 accept only the Moment Everything Backpack 21L Overnight, and 6 accept only the Moment Everything Backpack 17L Overnight.

### Only the Moment Everything Backpack 17L Overnight fits

Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska.

## Moment Everything Backpack 21L Overnight vs. Moment Everything Backpack 17L Overnight: which should you pack?

The **Moment Everything Backpack 21L Overnight** carries 4L more than the **Moment Everything Backpack 17L Overnight** (21L vs. 17L), while the **Moment Everything Backpack 17L Overnight** is the lighter pack at 0.7kg (vs. 0.8kg). For carry-on flexibility, the **Moment Everything Backpack 17L Overnight** fits 96% 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 17L Overnight is the better call.