STM Trilogy vs. Jansport West Break

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 TrilogyFeatureJansport West Break
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
N Passport top
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
15in Laptop 15in
1 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2 Water Bottle Holder 1, side
Y Water Resistant Y
Material
100% polyester30% Recycled 600 Denier Polyester

Jansport West Break

Front facing view of the Jansport West Break
Capacity28 L
Weight0.5 kg
Dimensions43×32×17 cm
Airline fit95%
Price$65

Key differences between the STM Trilogy and Jansport West Break

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

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 177 accept both. 1 accept only the STM Trilogy, and 2 accept only the Jansport West Break.

Only the STM Trilogy fits

Air Niugini.

Only the Jansport West Break fits

Air Tahiti, Gulf Air.

STM Trilogy vs. Jansport West Break: which should you pack?

The Jansport West Break carries 4L more than the STM Trilogy (24L vs. 28L), while the Jansport West Break is the lighter pack at 0.5kg (vs. 0.64kg). For carry-on flexibility, the Jansport West Break fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Jansport West Break; if you want to travel lighter, the Jansport West Break is the better call.