---
url: "https://onebag.travel/compare/av1mfodb4c/tomtoc-techpack-t73/zaj208cenq/thule-aion-40l/"
title: "tomtoc TechPack-T73 vs Thule Aion 40L - One Bag Travel"
description: "tomtoc TechPack-T73 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/av1mfodb4c/tomtoc-techpack-t73/zaj208cenq/thule-aion-40l/"
---
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3.  tomtoc TechPack-T73 vs. Thule Aion 40L

# tomtoc TechPack-T73 vs. Thule Aion 40L

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

## [tomtoc TechPack-T73](https://onebag.travel/carryon/av1mfodb4c/tomtoc-techpack-t73/)

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

![Front facing view of the tomtoc TechPack-T73](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990448/carryons/tomtoc-techpack-t73-av1mfodb4c.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>1.3 kg</td></tr><tr><td>Dimensions</td><td>47×31×17 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Feature by feature

| tomtoc TechPack-T73 | Feature | Thule Aion 40L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front, side | 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>X-Pac front panel, cordura(?) mix</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 tomtoc TechPack-T73 and Thule Aion 40L

-   **Passport pocket:** Front, side on the tomtoc TechPack-T73; Top on the Thule Aion 40L.
-   **Hip belt:** No on the tomtoc TechPack-T73; Optional on the Thule Aion 40L.
-   **Main compartments:** 5 on the tomtoc TechPack-T73; 4 on the Thule Aion 40L.

Both have: 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. 42 accept only the tomtoc TechPack-T73, and 0 accept only the Thule Aion 40L.

### Only the tomtoc TechPack-T73 fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, 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.

## tomtoc TechPack-T73 vs. Thule Aion 40L: which should you pack?

The **Thule Aion 40L** carries 10L more than the **tomtoc TechPack-T73** (30L vs. 40L), while the **tomtoc TechPack-T73** is the lighter pack at 1.3kg (vs. 1.5kg). For carry-on flexibility, the **tomtoc TechPack-T73** fits 92% 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 tomtoc TechPack-T73 is the better call.