Thule Subterra 34L vs. Wandrd Duo Daypack

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 34LFeatureWandrd Duo Daypack
Storage
N Compression N
None Expanded Capacity None
2 Opening 1
side Passport top
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt removable
Y Sternum Strap Y
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 nylon840D Jr. Ballistic Nylon with 5pm coating and 1680D Ballistic Nylon. Weather Resistant YKK Zippers.

Wandrd Duo Daypack

Front facing view of the Wandrd Duo Daypack
Capacity20 L
Weight1.2 kg
Dimensions50×29×17 cm
Airline fit92%
Price$235

Key differences between the Thule Subterra 34L and Wandrd Duo Daypack

Both have: luggage passthrough, backpack straps, sternum strap, 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 41 accept only the Wandrd Duo Daypack.

Only the Wandrd Duo Daypack fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, 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.

Thule Subterra 34L vs. Wandrd Duo Daypack: which should you pack?

The Thule Subterra 34L carries 14L more than the Wandrd Duo Daypack (34L vs. 20L), while the Thule Subterra 34L is the lighter pack at 1.2kg (vs. 1.2kg). For carry-on flexibility, the Wandrd Duo Daypack fits 92% 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 Thule Subterra 34L is the better call.