Fjallraven Ulvö 23 vs. Wave Booster Rolltop 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 23FeatureWave Booster Rolltop Backpack
Storage
2 Compression N
None Expanded Capacity None
4 Opening 2
front Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
removable Sternum Strap removable
Inside
15in Laptop 15in
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
Bergshell®: 400D 100% polyamideCordura 420D Packcloth

Wave Booster Rolltop Backpack

by Wave
Front facing view of the Wave Booster Rolltop Backpack
Capacity35 L
Weight0.8 kg
Dimensions51×31×20 cm
Airline fit89%
Price$150

Key differences between the Fjallraven Ulvö 23 and Wave Booster Rolltop Backpack

Both have: backpack straps, sternum strap, laptop sleeve, 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. 169 accept both. 12 accept only the Fjallraven Ulvö 23, and 0 accept only the Wave Booster Rolltop Backpack.

Only the Fjallraven Ulvö 23 fits

Air Niugini, Air Tahiti, American Eagle, Belavia, easyJet, Etihad Airways, Great Lakes Airlines, Gulf Air, Qatar Airways, Ravn Alaska, Regional Express, Virgin Australia.

Fjallraven Ulvö 23 vs. Wave Booster Rolltop Backpack: which should you pack?

The Wave Booster Rolltop Backpack carries 12L more than the Fjallraven Ulvö 23 (23L vs. 35L), while the Fjallraven Ulvö 23 is the lighter pack at 0.7kg (vs. 0.8kg). 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 Wave Booster Rolltop Backpack; if you want to travel lighter, the Fjallraven Ulvö 23 is the better call.