---
url: "https://onebag.travel/compare/7rzpkcwnfa/thule-subterra-34l/m519mfyqi6/red-oxx-sky-train-convertible-backpack/"
title: "Thule Subterra 34L vs Red Oxx Sky Train Convertible Backpack"
description: "Thule Subterra 34L vs Red Oxx Sky Train Convertible Backpack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/7rzpkcwnfa/thule-subterra-34l/m519mfyqi6/red-oxx-sky-train-convertible-backpack/"
---
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3.  Thule Subterra 34L vs. Red Oxx Sky Train Convertible Backpack

# Thule Subterra 34L vs. Red Oxx Sky Train Convertible Backpack

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

## [Thule Subterra 34L](https://onebag.travel/carryon/7rzpkcwnfa/thule-subterra-34l/)

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

![Front facing view of the Thule Subterra 34L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601124222/carryons/thulesubterra_vvfkax.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>34 L</td></tr><tr><td>Weight</td><td>1.2 kg</td></tr><tr><td>Dimensions</td><td>52×31×23 cm</td></tr><tr><td>Airline fit</td><td>70%</td></tr><tr><td>Price</td><td>$180</td></tr></tbody></table>

## Feature by feature

| Thule Subterra 34L | Feature | Red Oxx Sky Train Convertible Backpack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 2 | Opening | 0 |
| side | Passport | side |
| Y | Passthrough | N |
| Carry |
| Y | Backpack | hideable |
| N | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 15in | Laptop | 15in |
| 4 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>800D nylon</td><td>1000 weight urethane coated, Dupont certified CORDURA® Brand Nylon</td></tr></tbody></table>

## [Red Oxx Sky Train Convertible Backpack](https://onebag.travel/carryon/m519mfyqi6/red-oxx-sky-train-convertible-backpack/)

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

![Front facing view of the Red Oxx Sky Train Convertible Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990548/carryons/red-oxx-sky-train-convertible-backpack-m519mfyqi6.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>38 L</td></tr><tr><td>Weight</td><td>1.8 kg</td></tr><tr><td>Dimensions</td><td>51×33×23 cm</td></tr><tr><td>Airline fit</td><td>71%</td></tr><tr><td>Price</td><td>$400</td></tr></tbody></table>

## Key differences between the Thule Subterra 34L and Red Oxx Sky Train Convertible Backpack

-   **Opening:** Rolltop on the Thule Subterra 34L; Other on the Red Oxx Sky Train Convertible Backpack.
-   **Luggage passthrough:** Yes on the Thule Subterra 34L; No on the Red Oxx Sky Train Convertible Backpack.
-   **Backpack straps:** Yes on the Thule Subterra 34L; Hideable on the Red Oxx Sky Train Convertible Backpack.
-   **Water bottle pockets:** 1, side on the Thule Subterra 34L; No on the Red Oxx Sky Train Convertible Backpack.

Both have: passport pocket, sternum strap, laptop sleeve, built-in organizer, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 132 accept both. 0 accept only the Thule Subterra 34L, and 2 accept only the Red Oxx Sky Train Convertible Backpack.

### Only the Red Oxx Sky Train Convertible Backpack fits

Oman Air, Royal Jordanian.

## Thule Subterra 34L vs. Red Oxx Sky Train Convertible Backpack: which should you pack?

The **Red Oxx Sky Train Convertible Backpack** carries 4L more than the **Thule Subterra 34L** (34L vs. 38L), while the **Thule Subterra 34L** is the lighter pack at 1.2kg (vs. 1.8kg). For carry-on flexibility, the **Red Oxx Sky Train Convertible Backpack** fits 71% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Red Oxx Sky Train Convertible Backpack; if you want to travel lighter, the Thule Subterra 34L is the better call.