Millican Smith 15L vs. Ortlieb Velocity High Visibility

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 15LFeatureOrtlieb Velocity High Visibility
Storage
N Compression N
None Expanded Capacity None
2 Opening 2
side Passport N
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 N
Y Water Resistant N
Material
Weatherproof Bionic CanvasPS50CX

Ortlieb Velocity High Visibility

Front facing view of the Ortlieb Velocity High Visibility
Capacity23 L
Weight0.75 kg
Dimensions50×30×16 cm
Airline fit92%
Price$175

Key differences between the Millican Smith 15L and Ortlieb Velocity High Visibility

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

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 173 accept both. 8 accept only the Millican Smith 15L, and 0 accept only the Ortlieb Velocity High Visibility.

Only the Millican Smith 15L fits

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

Millican Smith 15L vs. Ortlieb Velocity High Visibility: which should you pack?

The Ortlieb Velocity High Visibility carries 8L more than the Millican Smith 15L (15L vs. 23L), while the Ortlieb Velocity High Visibility is the lighter pack at 0.75kg (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 Ortlieb Velocity High Visibility; if you want to travel lighter, the Ortlieb Velocity High Visibility is the better call.