Cabin Zero ADV 42L vs. Osprey Sojourn Porter Travel Pack 46

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

Cabin Zero ADV 42L

Front facing view of the Cabin Zero ADV 42L
Capacity42 L
Weight1.4 kg
Dimensions55×35×20 cm
Airline fit86%
Price$134

Feature by feature

Cabin Zero ADV 42LFeatureOsprey Sojourn Porter Travel Pack 46
Storage
4 Compression 2
None Expanded Capacity None
1 Opening 1
top Passport top
Y Passthrough Y
Carry
hideable Backpack hideable
hideable Hip Belt hideable
Y Sternum Strap Y
Inside
15in Laptop N
2 Main Compartments 3
N Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder N
Y Water Resistant Y
Material
Nylon 500 Denier Rip-Stop High density Polyethylene frame sheetbluesign® APPROVED, 100% recycled 460D high-tenacity nylon w/ ripstop, DWR treatment made without PFAS

Osprey Sojourn Porter Travel Pack 46

Front facing view of the Osprey Sojourn Porter Travel Pack 46
Capacity46 L
Weight1.6 kg
Dimensions55×35×23 cm
Airline fit67%
Price$200

Key differences between the Cabin Zero ADV 42L and Osprey Sojourn Porter Travel Pack 46

Both have: passport pocket, luggage passthrough, backpack straps, hip belt, sternum strap, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 127 accept both. 35 accept only the Cabin Zero ADV 42L, and 0 accept only the Osprey Sojourn Porter Travel Pack 46.

Only the Cabin Zero ADV 42L fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Blue Air, Bulgaria Air, China Eastern, Croatia Air, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

Cabin Zero ADV 42L vs. Osprey Sojourn Porter Travel Pack 46: which should you pack?

The Osprey Sojourn Porter Travel Pack 46 carries 4L more than the Cabin Zero ADV 42L (42L vs. 46L), while the Cabin Zero ADV 42L is the lighter pack at 1.4kg (vs. 1.6kg). For carry-on flexibility, the Cabin Zero ADV 42L fits 86% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Sojourn Porter Travel Pack 46; if you want to travel lighter, the Cabin Zero ADV 42L is the better call.