---
url: "https://onebag.travel/compare/97t3pto626/thule-aion-28l/av1mfodb4c/tomtoc-techpack-t73/"
title: "Thule Aion 28L vs tomtoc TechPack-T73 - One Bag Travel"
description: "Thule Aion 28L vs tomtoc TechPack-T73: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/97t3pto626/thule-aion-28l/av1mfodb4c/tomtoc-techpack-t73/"
---
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3.  Thule Aion 28L vs. tomtoc TechPack-T73

# Thule Aion 28L vs. tomtoc TechPack-T73

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

## [Thule Aion 28L](https://onebag.travel/carryon/97t3pto626/thule-aion-28l/)

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

![Front facing view of the Thule Aion 28L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990441/carryons/thule-aion-28l-97t3pto626.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>1.2 kg</td></tr><tr><td>Dimensions</td><td>47×28×23 cm</td></tr><tr><td>Airline fit</td><td>74%</td></tr><tr><td>Price</td><td>$190</td></tr></tbody></table>

## Feature by feature

| Thule Aion 28L | Feature | tomtoc TechPack-T73 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| 32L | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | front, side |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| optional | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 4 | Main Compartments | 5 |
| 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>Waxed P600 polyester canvas</td><td>X-Pac front panel, cordura(?) mix</td></tr></tbody></table>

## [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>

## Key differences between the Thule Aion 28L and tomtoc TechPack-T73

-   **Passport pocket:** Top on the Thule Aion 28L; Front, side on the tomtoc TechPack-T73.
-   **Hip belt:** Optional on the Thule Aion 28L; No on the tomtoc TechPack-T73.
-   **Main compartments:** 4 on the Thule Aion 28L; 5 on the tomtoc TechPack-T73.

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. 138 accept both. 1 accept only the Thule Aion 28L, and 36 accept only the tomtoc TechPack-T73.

### Only the Thule Aion 28L fits

Great Lakes Airlines.

### 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, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

## Thule Aion 28L vs. tomtoc TechPack-T73: which should you pack?

The **tomtoc TechPack-T73** carries 2L more than the **Thule Aion 28L** (28L vs. 30L), while the **Thule Aion 28L** is the lighter pack at 1.2kg (vs. 1.3kg). 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 tomtoc TechPack-T73; if you want to travel lighter, the Thule Aion 28L is the better call.