Cabin Zero ADV 42L vs. REI Co-op Ruckpack 40

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 42LFeatureREI Co-op Ruckpack 40
Storage
4 Compression 2
None Expanded Capacity None
1 Opening 1
top Passport top, side
Y Passthrough N
Carry
hideable Backpack hideable
hideable Hip Belt hideable
Y Sternum Strap Y
Inside
15in Laptop 15in
2 Main Compartments 5
N Organizer N
Outside
× Hard Shell ×
N Rain-fly Y
1, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
Nylon 500 Denier Rip-Stop High density Polyethylene frame sheetrecycled nylon shell

REI Co-op Ruckpack 40

Capacity40 L
Weight1.3 kg
Dimensions58×38×24 cm
Airline fit4%
Price$159

Key differences between the Cabin Zero ADV 42L and REI Co-op Ruckpack 40

Both have: backpack straps, hip belt, 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. 7 accept both. 155 accept only the Cabin Zero ADV 42L, and 0 accept only the REI Co-op Ruckpack 40.

Only the Cabin Zero ADV 42L fits

Adria Airways, Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Baltic, Air Canada, Air Caraibes, Air China, Air Europa, Air France, Air India, Air Koryo, Air Macau, Air Malta, Air Mauritius, Air New Zealand, Air Nostrum, Air Serbia, Air Seychelles, Air Tahiti Nui, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Asiana Airlines, ATA Airlines, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Azul Linhas, Bahamasair, Bangkok Airways, Biman Bangladesh, Blue Air, Boliviana de Aviacion, British Airways, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cebu Pacific, China Airlines, China Eastern, China Southern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Cubana de Aviacion, Czech Airlines, Delta Airlines, Dragonair, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, flybe, Garuda Indonesia, Gol Linhas Aereas, Hainan Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kenya Airways, KLM, Korean Air, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Onur Air, Pakistan International, Peach, Philippine Airlines, Porter Airlines, Qantas Airways, Republic Airways, Royal Air Morocco, Royal Brunei Airlines, Ryanair, S7, SAS Scandinavian, Saudi Arabian Airlines, Shandong Airlines, Shenzhen Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, Sky Airlines, Skywest, Inc., South African Airways, SpiceJet, Spirit Airlines, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAAG Angola, TAM Airlines, TAP Air Portugal, TAROM, Thai Airways, Tianjin Airlines (A320 & E190), Trans States, Travel Service Airlines, TUI, Turkish Airlines, Ukraine International, United Airlines, Ural Airlines, Uzbekistan Air, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Volotea, WOW Airlines, Xiamen.

Cabin Zero ADV 42L vs. REI Co-op Ruckpack 40: which should you pack?

The Cabin Zero ADV 42L carries 2L more than the REI Co-op Ruckpack 40 (42L vs. 40L), while the REI Co-op Ruckpack 40 is the lighter pack at 1.3kg (vs. 1.4kg). 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 Cabin Zero ADV 42L; if you want to travel lighter, the REI Co-op Ruckpack 40 is the better call.