Arcido Akra vs. REI Co-op Trail 40

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

Arcido Akra

Front facing view of the Arcido Akra
Capacity35 L
Weight1.3 kg
Dimensions55×35×20 cm
Airline fit86%
Price$200

Feature by feature

Arcido AkraFeatureREI Co-op Trail 40
Storage
N Compression 4
None Expanded Capacity None
1 Opening 1
top Passport top
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt Y
removable Sternum Strap removable
Inside
15in Laptop N
7 Main Compartments 5
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly Y
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
Body Fabric: 500D Blendex Kodra - With PU coating Bottom Scuff Fabric: 1000D Codra - With PU coating Lining: 150D Premium Polyester Oxford210-denier ripstop nylon

REI Co-op Trail 40

Capacity40 L
Weight1.2 kg
Dimensions56×30×23 cm
Airline fit47%
Price$130

Key differences between the Arcido Akra and REI Co-op Trail 40

Both have: passport pocket, backpack straps, sternum strap, built-in organizer, 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. 87 accept both. 75 accept only the Arcido Akra, and 1 accept only the REI Co-op Trail 40.

Only the Arcido Akra fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, All Nipon Airways, ANA, Asiana Airlines, ATA Airlines, Austrian, Azerbaijan Airlines, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, China Eastern, Czech Airlines, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, Fiji Airways, Flair Air, flybe, Gol Linhas Aereas, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Japan Airlines, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , LOT Polish, Lufthansa, Luxair, Mahan Air, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Pakistan International, Peach, Porter Airlines, Royal Brunei Airlines, Ryanair, S7, SAS Scandinavian, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Turkish Airlines, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

Only the REI Co-op Trail 40 fits

Cayman Airways.

Arcido Akra vs. REI Co-op Trail 40: which should you pack?

The REI Co-op Trail 40 carries 5L more than the Arcido Akra (35L vs. 40L), while the REI Co-op Trail 40 is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the Arcido Akra fits 86% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the REI Co-op Trail 40; if you want to travel lighter, the REI Co-op Trail 40 is the better call.