Thule Aion 28L vs. Bellroy Transit Travel Pack Pro

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

Thule Aion 28L

Front facing view of the Thule Aion 28L
Capacity28 L
Weight1.2 kg
Dimensions47×28×23 cm
Airline fit74%
Price$190

Feature by feature

Thule Aion 28LFeatureBellroy Transit Travel Pack Pro
Storage
N Compression
32L Expanded Capacity 38L
1 Opening 1
top Passport top
Y Passthrough Y
Carry
Y Backpack Y
optional Hip Belt N
Y Sternum Strap removable
Inside
16in Laptop 16in
4 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, side
Y Water Resistant N
Material
Waxed P600 polyester canvasRecycled Dura Weave

Bellroy Transit Travel Pack Pro

Front facing view of the Bellroy Transit Travel Pack Pro
Capacity32 L
Weight1.3 kg
Dimensions50×37×18 cm
Airline fit63%
Price$320

Key differences between the Thule Aion 28L and Bellroy Transit Travel Pack Pro

Both have: passport pocket, luggage passthrough, backpack straps, laptop sleeve, built-in organizer, water bottle pockets.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 86 accept both. 53 accept only the Thule Aion 28L, and 33 accept only the Bellroy Transit Travel Pack Pro.

Only the Thule Aion 28L fits

Aerolineas Argentinas, Air Asia, Air France, Air India, Air Macau, Air Mauritius, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Avianca , Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Copa Airlines, Delta Airlines, Dragonair, EVA Air, Garuda Indonesia, Great Lakes Airlines, Hawaiian Airlines, Hong Kong Airlines, Indigo, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, LATAM , Malaysia Airlines, Mango, Qantas Airways, Regional Express, Republic Airways, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Trans States, United Airlines, Vietnam Airlines, Virgin Atlantic, Virgin Australia.

Only the Bellroy Transit Travel Pack Pro 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, Icelandair, Juneyao 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. Bellroy Transit Travel Pack Pro: which should you pack?

The Bellroy Transit Travel Pack Pro carries 4L more than the Thule Aion 28L (28L vs. 32L), while the Thule Aion 28L is the lighter pack at 1.2kg (vs. 1.3kg). 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 Bellroy Transit Travel Pack Pro; if you want to travel lighter, the Thule Aion 28L is the better call.