---
url: "https://onebag.travel/compare/c2p5wz36ut/atom-pack-the-mo/so63ztuvtw/fjallraven-kaipak-28/"
title: "Atom Pack "The Mo" vs Fjallraven Kaipak 28"
description: "Atom Pack "The Mo" vs Fjallraven Kaipak 28: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/c2p5wz36ut/atom-pack-the-mo/so63ztuvtw/fjallraven-kaipak-28/"
---
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3.  Atom Pack "The Mo" vs. Fjallraven Kaipak 28

# Atom Pack "The Mo" vs. Fjallraven Kaipak 28

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

## [Atom Pack "The Mo"](https://onebag.travel/carryon/c2p5wz36ut/atom-pack-the-mo/)

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

![Front facing view of the Atom Pack "The Mo"](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620624608/carryons/Atom_Pack_The_Mo_ierjqf.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>0 kg</td></tr><tr><td>Dimensions</td><td>91×84×74 cm</td></tr><tr><td>Airline fit</td><td>0%</td></tr><tr><td>Price</td><td>$245</td></tr></tbody></table>

## Feature by feature

| Atom Pack "The Mo" | Feature | Fjallraven Kaipak 28 |
| --- | --- | --- |
| Storage |
| Y | Compression | Y |
| None | Expanded Capacity | None |
| 2 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer |  |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | Y |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>VX21 X-Pac fabric</td><td>G-1000® HeavyDuty Eco S: 65% polyester, 35% cotton 100% polyamide 500D</td></tr></tbody></table>

## [Fjallraven Kaipak 28](https://onebag.travel/carryon/so63ztuvtw/fjallraven-kaipak-28/)

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

![Front facing view of the Fjallraven Kaipak 28](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1624976409/carryons/Fjallraven_Kaipak_28_klj5ub.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>1.05 kg</td></tr><tr><td>Dimensions</td><td>57×28×21 cm</td></tr><tr><td>Airline fit</td><td>17%</td></tr><tr><td>Price</td><td>$150</td></tr></tbody></table>

## Key differences between the Atom Pack "The Mo" and Fjallraven Kaipak 28

-   **Opening:** Rolltop on the Atom Pack "The Mo"; Top zip on the Fjallraven Kaipak 28.
-   **Rain cover:** No on the Atom Pack "The Mo"; Yes on the Fjallraven Kaipak 28.

Both have: compression straps, backpack straps, hip belt, sternum strap, 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. 0 accept both. 0 accept only the Atom Pack "The Mo", and 32 accept only the Fjallraven Kaipak 28.

### Only the Fjallraven Kaipak 28 fits

Adria Airways, Air Europa, Air Koryo, Air New Zealand, Air Tahiti Nui, Azul Airlines, Azul Linhas, Caribbean Airlines, Cayman Airways, China Southern, Conviasa, Croatia Air, Cubana de Aviacion, Frontier Airlines, Hainan Airlines, Island Air, Korean Air, PenAir, Philippine Airlines, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Southwest Airlines, SpiceJet, Sun Country, TAAG Angola, TAM Airlines, Ural Airlines, Virgin America.

## Atom Pack "The Mo" vs. Fjallraven Kaipak 28: which should you pack?

The **Atom Pack "The Mo"** carries 12L more than the **Fjallraven Kaipak 28** (40L vs. 28L), and the two are closely matched on weight. For carry-on flexibility, the **Fjallraven Kaipak 28** fits 17% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Atom Pack "The Mo"; if you want to travel lighter, the Fjallraven Kaipak 28 is the better call.