REI Co-op Ruckpack 30 vs. United by Blue (R)evolution 25L Convertible Carryall

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

REI Co-op Ruckpack 30

Capacity30 L
Weight0.8 kg
Dimensions50×27×22 cm
Airline fit73%
Price$109

Feature by feature

REI Co-op Ruckpack 30FeatureUnited by Blue (R)evolution 25L Convertible Carryall
Storage
N Compression N
None Expanded Capacity None
0 Opening 0
top, side Passport front
N Passthrough N
Carry
hideable Backpack hideable
removable Hip Belt N
Y Sternum Strap removable
Inside
15in Laptop 15in
5 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
Y Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
recycled nylon shell

United by Blue (R)evolution 25L Convertible Carryall

Capacity25 L
Weight0 kg
Dimensions39×34×13 cm
Airline fit96%
Price$120

Key differences between the REI Co-op Ruckpack 30 and United by Blue (R)evolution 25L Convertible Carryall

Both have: backpack straps, 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. 137 accept both. 1 accept only the REI Co-op Ruckpack 30, and 44 accept only the United by Blue (R)evolution 25L Convertible Carryall.

Only the REI Co-op Ruckpack 30 fits

Great Lakes Airlines.

Only the United by Blue (R)evolution 25L Convertible Carryall fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Air Tahiti, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Gulf Air, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Ravn Alaska, Regional Express, 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), Virgin Australia, VivaColombia, Volaris, Volotea, Xiamen.

REI Co-op Ruckpack 30 vs. United by Blue (R)evolution 25L Convertible Carryall: which should you pack?

The REI Co-op Ruckpack 30 carries 5L more than the United by Blue (R)evolution 25L Convertible Carryall (30L vs. 25L), and the two are closely matched on weight. For carry-on flexibility, the United by Blue (R)evolution 25L Convertible Carryall fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the REI Co-op Ruckpack 30; if you want to travel lighter, the REI Co-op Ruckpack 30 is the better call.