---
url: "https://onebag.travel/compare/ttfp84t9n3/moment-everything-backpack-21l-overnight/y3b7zyyz0h/stm-good-myth-backpack-28l/"
title: "Moment Everything Backpack 21L Overnight vs STM Good Myth Backpack 28L"
description: "Moment Everything Backpack 21L Overnight vs STM Good Myth Backpack 28L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by…"
source: "https://onebag.travel/compare/ttfp84t9n3/moment-everything-backpack-21l-overnight/y3b7zyyz0h/stm-good-myth-backpack-28l/"
---
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3.  Moment Everything Backpack 21L Overnight vs. STM Good Myth Backpack 28L

# Moment Everything Backpack 21L Overnight vs. STM Good Myth Backpack 28L

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 | STM Good Myth Backpack 28L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| front | Passport | N |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 3 | Main Compartments | 4 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>420D Nylon Fabric</td><td>100% polyester</td></tr></tbody></table>

## [STM Good Myth Backpack 28L](https://onebag.travel/carryon/y3b7zyyz0h/stm-good-myth-backpack-28l/)

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

![Front facing view of the STM Good Myth Backpack 28L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1617337526/carryons/STM_Myth_Backpack_crkuwf.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>28 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>46×31×18 cm</td></tr><tr><td>Airline fit</td><td>94%</td></tr><tr><td>Price</td><td>$140</td></tr></tbody></table>

## Key differences between the Moment Everything Backpack 21L Overnight and STM Good Myth Backpack 28L

-   **Passport pocket:** Front on the Moment Everything Backpack 21L Overnight; No on the STM Good Myth Backpack 28L.
-   **Main compartments:** 3 on the Moment Everything Backpack 21L Overnight; 4 on the STM Good Myth Backpack 28L.
-   **Water bottle pockets:** 1, side on the Moment Everything Backpack 21L Overnight; 2 on the STM Good Myth Backpack 28L.

Both have: luggage passthrough, backpack straps, sternum strap, laptop sleeve, 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. 1 accept only the Moment Everything Backpack 21L Overnight, and 3 accept only the STM Good Myth Backpack 28L.

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

Air Niugini.

### Only the STM Good Myth Backpack 28L fits

American Eagle, easyJet, Ravn Alaska.

## Moment Everything Backpack 21L Overnight vs. STM Good Myth Backpack 28L: which should you pack?

The **STM Good Myth Backpack 28L** carries 7L more than the **Moment Everything Backpack 21L Overnight** (21L vs. 28L), while the **Moment Everything Backpack 21L Overnight** is the lighter pack at 0.8kg (vs. 1.2kg). For carry-on flexibility, the **STM Good Myth Backpack 28L** fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Good Myth Backpack 28L; if you want to travel lighter, the Moment Everything Backpack 21L Overnight is the better call.