Cabin Zero Military 36L vs. Macpac Kahu AzTec® 22

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

Cabin Zero Military 36L

Front facing view of the Cabin Zero Military 36L
Capacity36 L
Weight0.95 kg
Dimensions46×33×16 cm
Airline fit94%
Price$110

Feature by feature

Cabin Zero Military 36LFeatureMacpac Kahu AzTec® 22
Storage
Y Compression N
None Expanded Capacity None
4 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
1000 Denier nylon fabricEco AzTec® 8 Canvas — 80% Polyester, 20% Cotton

Macpac Kahu AzTec® 22

Front facing view of the Macpac Kahu AzTec® 22
Capacity22 L
Weight0.7 kg
Dimensions10×10×10 cm
Airline fit100%
Price$90

Key differences between the Cabin Zero Military 36L and Macpac Kahu AzTec® 22

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. 177 accept both. 0 accept only the Cabin Zero Military 36L, and 12 accept only the Macpac Kahu AzTec® 22.

Only the Macpac Kahu AzTec® 22 fits

Air Niugini, Air Tahiti, Great Lakes Airlines, Gulf Air, LC Perú, Linea Aerea Amaszonas, Lion Air Group, Spring Airlines, Tianjin Airlines (E145), VivaColombia, Volaris, Wizz Air.

Cabin Zero Military 36L vs. Macpac Kahu AzTec® 22: which should you pack?

The Cabin Zero Military 36L carries 14L more than the Macpac Kahu AzTec® 22 (36L vs. 22L), while the Macpac Kahu AzTec® 22 is the lighter pack at 0.7kg (vs. 0.95kg). For carry-on flexibility, the Macpac Kahu AzTec® 22 fits 100% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cabin Zero Military 36L; if you want to travel lighter, the Macpac Kahu AzTec® 22 is the better call.