Thule Subterra 34L vs. Jansport West Break

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

Thule Subterra 34L

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

Feature by feature

Thule Subterra 34LFeatureJansport West Break
Storage
N Compression N
None Expanded Capacity None
2 Opening 4
side Passport top
Y Passthrough N
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap N
Inside
15in Laptop 15in
4 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
800D nylon30% Recycled 600 Denier Polyester

Jansport West Break

Front facing view of the Jansport West Break
Capacity28 L
Weight0.5 kg
Dimensions43×32×17 cm
Airline fit95%
Price$65

Key differences between the Thule Subterra 34L and Jansport West Break

Both have: 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. 0 accept only the Thule Subterra 34L, and 47 accept only the Jansport West Break.

Only the Jansport West Break fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Air Tahiti, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, Etihad Airways, flybe, Gulf Air, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Ravn Alaska, Regional Express, 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), Virgin Australia, Volotea, Xiamen.

Thule Subterra 34L vs. Jansport West Break: which should you pack?

The Thule Subterra 34L carries 6L more than the Jansport West Break (34L vs. 28L), while the Jansport West Break is the lighter pack at 0.5kg (vs. 1.2kg). For carry-on flexibility, the Jansport West Break fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Thule Subterra 34L; if you want to travel lighter, the Jansport West Break is the better call.