---
url: "https://onebag.travel/compare/v15adbh2zw/alpaka-gear-traverse-backpack/zaj208cenq/thule-aion-40l/"
title: "Alpaka Gear Traverse Backpack vs Thule Aion 40L"
description: "Alpaka Gear Traverse Backpack vs Thule Aion 40L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/v15adbh2zw/alpaka-gear-traverse-backpack/zaj208cenq/thule-aion-40l/"
---
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3.  Alpaka Gear Traverse Backpack vs. Thule Aion 40L

# Alpaka Gear Traverse Backpack vs. Thule Aion 40L

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

## [Alpaka Gear Traverse Backpack](https://onebag.travel/carryon/v15adbh2zw/alpaka-gear-traverse-backpack/)

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

![Front facing view of the Alpaka Gear Traverse Backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990329/carryons/alpaka-gear-traverse-backpack-v15adbh2zw.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>47×28×18 cm</td></tr><tr><td>Airline fit</td><td>93%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Feature by feature

| Alpaka Gear Traverse Backpack | Feature | Thule Aion 40L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| N | Hip Belt | optional |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 5 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Axoflux 400D ripstop nylon</td><td></td></tr></tbody></table>

## [Thule Aion 40L](https://onebag.travel/carryon/zaj208cenq/thule-aion-40l/)

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

![Front facing view of the Thule Aion 40L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990324/carryons/thule-aion-40l-zaj208cenq.avif)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>52×33×23 cm</td></tr><tr><td>Airline fit</td><td>70%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Key differences between the Alpaka Gear Traverse Backpack and Thule Aion 40L

-   **Hip belt:** No on the Alpaka Gear Traverse Backpack; Optional on the Thule Aion 40L.
-   **Main compartments:** 5 on the Alpaka Gear Traverse Backpack; 4 on the Thule Aion 40L.

Both have: passport pocket, luggage passthrough, backpack straps, sternum strap, laptop sleeve, built-in organizer, 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. 132 accept both. 44 accept only the Alpaka Gear Traverse Backpack, and 0 accept only the Thule Aion 40L.

### Only the Alpaka Gear Traverse Backpack fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, Xiamen.

## Alpaka Gear Traverse Backpack vs. Thule Aion 40L: which should you pack?

The **Thule Aion 40L** carries 10L more than the **Alpaka Gear Traverse Backpack** (30L vs. 40L), while the **Alpaka Gear Traverse Backpack** is the lighter pack at 1.5kg (vs. 1.5kg). For carry-on flexibility, the **Alpaka Gear Traverse Backpack** fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Thule Aion 40L; if you want to travel lighter, the Alpaka Gear Traverse Backpack is the better call.