STM Trilogy vs. Kathmandu Cotingo Pack 25L

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

STM Trilogy

by Stm
Front facing view of the STM Trilogy
Capacity24 L
Weight0.64 kg
Dimensions46×30×16 cm
Airline fit94%
Price$80

Feature by feature

STM TrilogyFeatureKathmandu Cotingo Pack 25L
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2 Water Bottle Holder 1
Y Water Resistant N
Material
100% polyester600D Polyester

Kathmandu Cotingo Pack 25L

Front facing view of the Kathmandu Cotingo Pack 25L
Capacity25 L
Weight0.6 kg
Dimensions50×31×20 cm
Airline fit91%
Price$80

Key differences between the STM Trilogy and Kathmandu Cotingo Pack 25L

Both have: backpack straps, laptop sleeve, built-in organizer.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 172 accept both. 6 accept only the STM Trilogy, and 0 accept only the Kathmandu Cotingo Pack 25L.

Only the STM Trilogy fits

Air Niugini, American Eagle, easyJet, Ravn Alaska, Regional Express, Virgin Australia.

STM Trilogy vs. Kathmandu Cotingo Pack 25L: which should you pack?

The Kathmandu Cotingo Pack 25L carries 1L more than the STM Trilogy (24L vs. 25L), while the Kathmandu Cotingo Pack 25L is the lighter pack at 0.6kg (vs. 0.64kg). For carry-on flexibility, the STM Trilogy fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Kathmandu Cotingo Pack 25L; if you want to travel lighter, the Kathmandu Cotingo Pack 25L is the better call.