Fjallraven Ulvö 23 vs. Timbuk2 Never Check Expandable Backpack

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

Fjallraven Ulvö 23

Front facing view of the Fjallraven Ulvö 23
Capacity23 L
Weight0.7 kg
Dimensions45×28×13 cm
Airline fit96%
Price$125

Feature by feature

Fjallraven Ulvö 23FeatureTimbuk2 Never Check Expandable Backpack
Storage
2 Compression 2
None Expanded Capacity 28L
4 Opening 0
front Passport front
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
removable Sternum Strap removable
Inside
15in Laptop 15in
2 Main Compartments 3
N Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
Bergshell®: 400D 100% polyamide

Timbuk2 Never Check Expandable Backpack

Front facing view of the Timbuk2 Never Check Expandable Backpack
Capacity25 L
Weight1.2 kg
Dimensions48×29×15 cm
Airline fit93%
Price$210

Key differences between the Fjallraven Ulvö 23 and Timbuk2 Never Check Expandable Backpack

Both have: compression straps, passport pocket, backpack straps, sternum strap, laptop sleeve, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 175 accept both. 6 accept only the Fjallraven Ulvö 23, and 0 accept only the Timbuk2 Never Check Expandable Backpack.

Only the Fjallraven Ulvö 23 fits

Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska.

Fjallraven Ulvö 23 vs. Timbuk2 Never Check Expandable Backpack: which should you pack?

The Timbuk2 Never Check Expandable Backpack carries 2L more than the Fjallraven Ulvö 23 (23L vs. 25L), while the Fjallraven Ulvö 23 is the lighter pack at 0.7kg (vs. 1.2kg). For carry-on flexibility, the Fjallraven Ulvö 23 fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Timbuk2 Never Check Expandable Backpack; if you want to travel lighter, the Fjallraven Ulvö 23 is the better call.