REI Co-op Ruckpack 18 vs. Timbuk2 Command

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

REI Co-op Ruckpack 18

Front facing view of the REI Co-op Ruckpack 18
Capacity18 L
Weight0.7 kg
Dimensions44×26×18 cm
Airline fit96%
Price$65

Feature by feature

REI Co-op Ruckpack 18FeatureTimbuk2 Command
Storage
Compression N
None Expanded Capacity None
0 Opening 0
side Passport top
N Passthrough N
Carry
Backpack
removable Hip Belt N
removable Sternum Strap removable
Inside
15in Laptop 15in
2 Main Compartments 5
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
Water Bottle Holder
Y Water Resistant Y
Material
210-denier nylon ripstop

Timbuk2 Command

Front facing view of the Timbuk2 Command
Capacity32 L
Weight1.1 kg
Dimensions49×34×14 cm
Airline fit91%
Price$130

Key differences between the REI Co-op Ruckpack 18 and Timbuk2 Command

Both have: sternum strap, laptop sleeve, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 172 accept both. 9 accept only the REI Co-op Ruckpack 18, and 0 accept only the Timbuk2 Command.

Only the REI Co-op Ruckpack 18 fits

Air Niugini, Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

REI Co-op Ruckpack 18 vs. Timbuk2 Command: which should you pack?

The Timbuk2 Command carries 14L more than the REI Co-op Ruckpack 18 (18L vs. 32L), while the REI Co-op Ruckpack 18 is the lighter pack at 0.7kg (vs. 1.1kg). For carry-on flexibility, the REI Co-op Ruckpack 18 fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Timbuk2 Command; if you want to travel lighter, the REI Co-op Ruckpack 18 is the better call.