Kathmandu Solus Pack 20 vs. Solo All- Star Backpack Duffel

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

Kathmandu Solus Pack 20

Front facing view of the Kathmandu Solus Pack 20
Capacity20 L
Weight0.42 kg
Dimensions47×28×19 cm
Airline fit93%
Price$60

Feature by feature

Kathmandu Solus Pack 20FeatureSolo All- Star Backpack Duffel
Storage
N Compression N
None Expanded Capacity None
4 Opening 1
N Passport N
N Passthrough N
Carry
Y Backpack hideable
N Hip Belt N
N Sternum Strap N
Inside
15in Laptop 15in
1 Main Compartments 4
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
N Water Resistant N
Material
100% PolyesterNylon / Polyester

Solo All- Star Backpack Duffel

Front facing view of the Solo All- Star Backpack Duffel
Capacity22.6 L
Weight1 kg
Dimensions51×31×16 cm
Airline fit89%
Price$86

Key differences between the Kathmandu Solus Pack 20 and Solo All- Star Backpack Duffel

Both have: laptop sleeve.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 169 accept both. 7 accept only the Kathmandu Solus Pack 20, and 0 accept only the Solo All- Star Backpack Duffel.

Only the Kathmandu Solus Pack 20 fits

Air Niugini, Belavia, Etihad Airways, Great Lakes Airlines, Qatar Airways, Regional Express, Virgin Australia.

Kathmandu Solus Pack 20 vs. Solo All- Star Backpack Duffel: which should you pack?

The Solo All- Star Backpack Duffel carries 2.6000000000000014L more than the Kathmandu Solus Pack 20 (20L vs. 22.6L), while the Kathmandu Solus Pack 20 is the lighter pack at 0.42kg (vs. 1kg). For carry-on flexibility, the Kathmandu Solus Pack 20 fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Solo All- Star Backpack Duffel; if you want to travel lighter, the Kathmandu Solus Pack 20 is the better call.