Osprey Flapjack vs. Millican Miscellaneous Adventures

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

Osprey Flapjack

Front facing view of the Osprey Flapjack
Capacity21 L
Weight0.9 kg
Dimensions49×34×23 cm
Airline fit72%
Price$110

Feature by feature

Osprey FlapjackFeatureMillican Miscellaneous Adventures
Storage
Compression
None Expanded Capacity None
0 Opening 0
side Passport side
N Passthrough N
Carry
Y Backpack
removable Hip Belt N
Sternum Strap N
Inside
15in Laptop 15in
3 Main Compartments 3
Y Organizer N
Outside
× Hard Shell ×
N Rain-fly N
Water Bottle Holder
Y Water Resistant Y
Material
600D Polyspun100% recycled polyester made from 40 PET bottlesC6 DWR water repellent treatmentPU1500 waterproof coating

Millican Miscellaneous Adventures

Front facing view of the Millican Miscellaneous Adventures
Capacity18 L
Weight1 kg
Dimensions51×29×13 cm
Airline fit89%
Price$110

Key differences between the Osprey Flapjack and Millican Miscellaneous Adventures

Both have: passport pocket, 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. 134 accept both. 2 accept only the Osprey Flapjack, and 35 accept only the Millican Miscellaneous Adventures.

Only the Osprey Flapjack fits

Etihad Airways, Qatar Airways.

Only the Millican Miscellaneous Adventures fits

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

Osprey Flapjack vs. Millican Miscellaneous Adventures: which should you pack?

The Osprey Flapjack carries 3L more than the Millican Miscellaneous Adventures (21L vs. 18L), while the Osprey Flapjack is the lighter pack at 0.9kg (vs. 1kg). For carry-on flexibility, the Millican Miscellaneous Adventures fits 89% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Flapjack; if you want to travel lighter, the Osprey Flapjack is the better call.