---
url: "https://onebag.travel/compare/5n1qal8sf1/boundary-supply-arris-pack/97t3pto626/thule-aion-28l/"
title: "Boundary Supply Arris Pack vs Thule Aion 28L"
description: "Boundary Supply Arris Pack vs Thule Aion 28L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/5n1qal8sf1/boundary-supply-arris-pack/97t3pto626/thule-aion-28l/"
---
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3.  Boundary Supply Arris Pack vs. Thule Aion 28L

# Boundary Supply Arris Pack vs. Thule Aion 28L

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

## [Boundary Supply Arris Pack](https://onebag.travel/carryon/5n1qal8sf1/boundary-supply-arris-pack/)

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

![Front facing view of the Boundary Supply Arris Pack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1620705191/carryons/Boundary_Supply_Arris_Pack_ui5kdm.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>35 L</td></tr><tr><td>Weight</td><td>2 kg</td></tr><tr><td>Dimensions</td><td>56×33×23 cm</td></tr><tr><td>Airline fit</td><td>47%</td></tr><tr><td>Price</td><td>$400</td></tr></tbody></table>

## Feature by feature

| Boundary Supply Arris Pack | Feature | Thule Aion 28L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | 32L |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| Y | Hip Belt | optional |
| Y | Sternum Strap | Y |
| Inside |
| 17in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| N | 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>400D TPU Nylon</td><td>Waxed P600 polyester canvas</td></tr></tbody></table>

## [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>

## Key differences between the Boundary Supply Arris Pack and Thule Aion 28L

-   **Hip belt:** Yes on the Boundary Supply Arris Pack; Optional on the Thule Aion 28L.
-   **Laptop sleeve:** 17in on the Boundary Supply Arris Pack; 16in on the Thule Aion 28L.
-   **Built-in organizer:** No on the Boundary Supply Arris Pack; Yes on the Thule Aion 28L.

Both have: passport pocket, luggage passthrough, 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. 88 accept both. 0 accept only the Boundary Supply Arris Pack, and 51 accept only the Thule Aion 28L.

### Only the Thule Aion 28L fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Canada, Air Caraibes, Air France, Air India, Air Mauritius, All Nipon Airways, ANA, Austrian, Azerbaijan Airlines, Boliviana de Aviacion, Brussels Airlines, Czech Airlines, Ethiopian Airlines, Etihad Airways, Eurowings, Fiji Airways, Flair Air, Gol Linhas Aereas, Great Lakes Airlines, Iberia, Indigo, Interjet, Iran Air, Japan Airlines, Jet Airways, Kenya Airways, KLM, LATAM , LOT Polish, Lufthansa, Mahan Air, Mesa Airlines, Norwegian, Oman Air, Peach, Porter Airlines, Qatar Airways, Regional Express, Royal Jordanian, SAS Scandinavian, Scoot, Sky Airlines, Swiss Int'l Air Lines, Tiger Airways, Turkish Airlines, Virgin Australia, WestJet.

## Boundary Supply Arris Pack vs. Thule Aion 28L: which should you pack?

The **Boundary Supply Arris Pack** carries 7L more than the **Thule Aion 28L** (35L vs. 28L), while the **Thule Aion 28L** is the lighter pack at 1.2kg (vs. 2kg). For carry-on flexibility, the **Thule Aion 28L** fits 74% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Boundary Supply Arris Pack; if you want to travel lighter, the Thule Aion 28L is the better call.