REI Co-op Ruckpack 28 vs. REI Co-op Trail Pack 25

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

REI Co-op Ruckpack 28

Front facing view of the REI Co-op Ruckpack 28
Capacity28 L
Weight0.8 kg
Dimensions50×28×23 cm
Airline fit72%
Price$130

Feature by feature

REI Co-op Ruckpack 28FeatureREI Co-op Trail Pack 25
Storage
2 Compression 2
None Expanded Capacity None
1 Opening 0
top Passport top
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
Y Sternum Strap Y
Inside
15in Laptop N
3 Main Compartments 3
Y Organizer N
Outside
× Hard Shell ×
Y Rain-fly Y
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
Recycled nylon shell frame: Rigid foam210-denier ripstop nylon

REI Co-op Trail Pack 25

Front facing view of the REI Co-op Trail Pack 25
Capacity25 L
Weight0.8 kg
Dimensions46×33×20 cm
Airline fit94%
Price$100

Key differences between the REI Co-op Ruckpack 28 and REI Co-op Trail Pack 25

Both have: compression straps, passport pocket, backpack straps, hip belt, sternum strap, rain cover, 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. 136 accept both. 1 accept only the REI Co-op Ruckpack 28, and 41 accept only the REI Co-op Trail Pack 25.

Only the REI Co-op Ruckpack 28 fits

Great Lakes Airlines.

Only the REI Co-op Trail Pack 25 fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, 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, Volotea, Xiamen.

REI Co-op Ruckpack 28 vs. REI Co-op Trail Pack 25: which should you pack?

The REI Co-op Ruckpack 28 carries 3L more than the REI Co-op Trail Pack 25 (28L vs. 25L), while the REI Co-op Ruckpack 28 is the lighter pack at 0.8kg (vs. 0.8kg). For carry-on flexibility, the REI Co-op Trail Pack 25 fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the REI Co-op Ruckpack 28; if you want to travel lighter, the REI Co-op Ruckpack 28 is the better call.