Thule Aion 28L vs. Aer Pro Pack 24L
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Thule Aion 28L | Feature | Aer Pro Pack 24L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| 32L | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| optional | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside | ||
| 16in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| Waxed P600 polyester canvas | 840D CORDURA re/cor recycled nylon |
Key differences between the Thule Aion 28L and Aer Pro Pack 24L
- Hip belt: Optional on the Thule Aion 28L; No on the Aer Pro Pack 24L.
- Water bottle pockets: 1, side on the Thule Aion 28L; 2, side on the Aer Pro Pack 24L.
Both have: passport pocket, luggage passthrough, backpack straps, 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. 138 accept both. 1 accept only the Thule Aion 28L, and 36 accept only the Aer Pro Pack 24L.
Only the Thule Aion 28L fits
Great Lakes Airlines.
Only the Aer Pro Pack 24L 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. Aer Pro Pack 24L: which should you pack?
The Thule Aion 28L carries 4L more than the Aer Pro Pack 24L (28L vs. 24L), while the Thule Aion 28L is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the Aer Pro Pack 24L fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Thule Aion 28L; if you want to travel lighter, the Thule Aion 28L is the better call.