---
url: "https://onebag.travel/compare/2pzklkilok/zpacks-bagger-ultra/iafupe4rrv/fjallraven-singi-20/"
title: "Zpacks Bagger Ultra vs Fjallraven Singi 20 - One Bag Travel"
description: "Zpacks Bagger Ultra vs Fjallraven Singi 20: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/2pzklkilok/zpacks-bagger-ultra/iafupe4rrv/fjallraven-singi-20/"
---
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3.  Zpacks Bagger Ultra vs. Fjallraven Singi 20

# Zpacks Bagger Ultra vs. Fjallraven Singi 20

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

## [Zpacks Bagger Ultra](https://onebag.travel/carryon/2pzklkilok/zpacks-bagger-ultra/)

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

![Front facing view of the Zpacks Bagger Ultra](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990726/carryons/zpacks-bagger-ultra-2pzklkilok.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>0.3 kg</td></tr><tr><td>Dimensions</td><td>46×28×14 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$250</td></tr></tbody></table>

## Feature by feature

| Zpacks Bagger Ultra | Feature | Fjallraven Singi 20 |
| --- | --- | --- |
| Storage |
| N | Compression | 2 |
| None | Expanded Capacity | None |
| 1 | Opening | 4 |
| top | Passport | top |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable, optional | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside |
| N | Laptop | 13in |
| 3 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>3.3oz/sqyd Ultra 100X, not coated with DWR or other chemicals and is PFAS free</td><td>100% polyester 600D (recycled)</td></tr></tbody></table>

## [Fjallraven Singi 20](https://onebag.travel/carryon/iafupe4rrv/fjallraven-singi-20/)

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

![Front facing view of the Fjallraven Singi 20](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1624370043/carryons/Fjallraven_Singi_20_xz2as1.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.7 kg</td></tr><tr><td>Dimensions</td><td>43×28×16 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$85</td></tr></tbody></table>

## Key differences between the Zpacks Bagger Ultra and Fjallraven Singi 20

-   **Compression straps:** No on the Zpacks Bagger Ultra; 2 on the Fjallraven Singi 20.
-   **Opening:** Clamshell on the Zpacks Bagger Ultra; Top zip on the Fjallraven Singi 20.
-   **Hip belt:** Removable, optional on the Zpacks Bagger Ultra; No on the Fjallraven Singi 20.
-   **Laptop sleeve:** No on the Zpacks Bagger Ultra; 13in on the Fjallraven Singi 20.

Both have: passport pocket, backpack straps, 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. 179 accept both. 0 accept only the Zpacks Bagger Ultra, and 2 accept only the Fjallraven Singi 20.

### Only the Fjallraven Singi 20 fits

Air Tahiti, Gulf Air.

## Zpacks Bagger Ultra vs. Fjallraven Singi 20: which should you pack?

The **Zpacks Bagger Ultra** carries 5L more than the **Fjallraven Singi 20** (25L vs. 20L), while the **Zpacks Bagger Ultra** is the lighter pack at 0.3kg (vs. 0.7kg). For carry-on flexibility, the **Fjallraven Singi 20** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Zpacks Bagger Ultra; if you want to travel lighter, the Zpacks Bagger Ultra is the better call.