Wave Booster Rolltop Backpack vs. STM Kings

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

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

Feature by feature

Wave Booster Rolltop BackpackFeatureSTM Kings
Storage
N Compression N
None Expanded Capacity None
2 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
removable Sternum Strap N
Inside
15in Laptop 15in
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2
Y Water Resistant Y
Material
Cordura 420D Packcloth100% polyester

STM Kings

by Stm
Front facing view of the STM Kings
Capacity22 L
Weight0.95 kg
Dimensions47.5×30×17 cm
Airline fit93%
Price$150

Key differences between the Wave Booster Rolltop Backpack and STM Kings

Both have: backpack straps, 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. 169 accept both. 0 accept only the Wave Booster Rolltop Backpack, and 6 accept only the STM Kings.

Only the STM Kings fits

Air Niugini, Belavia, Etihad Airways, Qatar Airways, Regional Express, Virgin Australia.

Wave Booster Rolltop Backpack vs. STM Kings: which should you pack?

The Wave Booster Rolltop Backpack carries 13L more than the STM Kings (35L vs. 22L), while the Wave Booster Rolltop Backpack is the lighter pack at 0.8kg (vs. 0.95kg). For carry-on flexibility, the STM Kings fits 93% 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 Wave Booster Rolltop Backpack is the better call.