---
url: "https://onebag.travel/compare/lgggqva3tj/aer-duffel-pack-2/y3b7zyyz0h/stm-good-myth-backpack-28l/"
title: "Aer Duffel Pack 2 vs STM Good Myth Backpack 28L"
description: "Aer Duffel Pack 2 vs STM Good Myth Backpack 28L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/lgggqva3tj/aer-duffel-pack-2/y3b7zyyz0h/stm-good-myth-backpack-28l/"
---
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3.  Aer Duffel Pack 2 vs. STM Good Myth Backpack 28L

# Aer Duffel Pack 2 vs. STM Good Myth Backpack 28L

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

## [Aer Duffel Pack 2](https://onebag.travel/carryon/lgggqva3tj/aer-duffel-pack-2/)

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

![Front facing view of the Aer Duffel Pack 2](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1618225092/carryons/Aer_Duffel_Pack_2_wphfg9.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>24.6 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>55×30×20 cm</td></tr><tr><td>Airline fit</td><td>86%</td></tr><tr><td>Price</td><td>$136</td></tr></tbody></table>

## Feature by feature

| Aer Duffel Pack 2 | Feature | STM Good Myth Backpack 28L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| N | Passport | N |
| N | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 16in |
| 3 | Main Compartments | 4 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>900D eco-dyed polyester exterior</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 Aer Duffel Pack 2 and STM Good Myth Backpack 28L

-   **Luggage passthrough:** No on the Aer Duffel Pack 2; Yes on the STM Good Myth Backpack 28L.
-   **Laptop sleeve:** 15in on the Aer Duffel Pack 2; 16in on the STM Good Myth Backpack 28L.
-   **Main compartments:** 3 on the Aer Duffel Pack 2; 4 on the STM Good Myth Backpack 28L.
-   **Water bottle pockets:** 1 on the Aer Duffel Pack 2; 2 on the STM Good Myth Backpack 28L.

Both have: backpack straps, sternum strap, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 163 accept both. 0 accept only the Aer Duffel Pack 2, and 14 accept only the STM Good Myth Backpack 28L.

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

American Eagle, Belavia, easyJet, Etihad Airways, Liat Airlines, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Scoot, Tiger Airways, Virgin Australia, WestJet.

## Aer Duffel Pack 2 vs. STM Good Myth Backpack 28L: which should you pack?

The **STM Good Myth Backpack 28L** carries 3.3999999999999986L more than the **Aer Duffel Pack 2** (24.6L vs. 28L), while the **Aer Duffel Pack 2** is the lighter pack at 1.1kg (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 Aer Duffel Pack 2 is the better call.