Troubadour Aero Backpack vs. Thule Subterra 34L

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

Troubadour Aero Backpack

Capacity34 L
Weight1.3 kg
Dimensions51×34×20 cm
Airline fit89%
Price$295

Feature by feature

Troubadour Aero BackpackFeatureThule Subterra 34L
Storage
N Compression N
None Expanded Capacity None
0 Opening 2
top, front Passport side
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
removable Sternum Strap Y
Inside
15in Laptop 15in
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
Material
Recycled polyester800D nylon

Thule Subterra 34L

Front facing view of the Thule Subterra 34L
Capacity34 L
Weight1.2 kg
Dimensions52×31×23 cm
Airline fit70%
Price$180

Key differences between the Troubadour Aero Backpack and Thule Subterra 34L

Both have: luggage passthrough, backpack straps, 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. 37 accept only the Troubadour Aero Backpack, and 0 accept only the Thule Subterra 34L.

Only the Troubadour Aero Backpack fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, 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), Volotea, Xiamen.

Troubadour Aero Backpack vs. Thule Subterra 34L: which should you pack?

The Troubadour Aero Backpack carries the same capacity as the Thule Subterra 34L (34L vs. 34L), while the Thule Subterra 34L is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the Troubadour Aero Backpack fits 89% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Troubadour Aero Backpack; if you want to travel lighter, the Thule Subterra 34L is the better call.