Millican Smith 15L vs. Ortleib Light-Pack

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

Millican Smith 15L

Front facing view of the Millican Smith 15L
Capacity15 L
Weight0.8 kg
Dimensions45×28×10 cm
Airline fit96%
Price$115

Feature by feature

Millican Smith 15LFeatureOrtleib Light-Pack
Storage
N Compression N
None Expanded Capacity None
2 Opening 2
side Passport
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable Sternum Strap removable
Inside
13in Laptop N
3 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 2, side
Y Water Resistant Y
Material
Weatherproof Bionic Canvaspolyurethane-coated nylon fabric

Ortleib Light-Pack

Capacity25 L
Weight0.3 kg
Dimensions47×26×15 cm
Airline fit93%
Price$140

Key differences between the Millican Smith 15L and Ortleib Light-Pack

Both have: backpack straps, hip belt, sternum strap, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 176 accept both. 5 accept only the Millican Smith 15L, and 0 accept only the Ortleib Light-Pack.

Only the Millican Smith 15L fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

Millican Smith 15L vs. Ortleib Light-Pack: which should you pack?

The Ortleib Light-Pack carries 10L more than the Millican Smith 15L (15L vs. 25L), while the Ortleib Light-Pack is the lighter pack at 0.3kg (vs. 0.8kg). For carry-on flexibility, the Millican Smith 15L fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ortleib Light-Pack; if you want to travel lighter, the Ortleib Light-Pack is the better call.