Jansport Field Pack vs. STM Trilogy
Two carry-on travel backpacks, compared spec for spec.
Jansport Field Pack
| Capacity | 28 L |
| Weight | 0.56 kg |
| Dimensions | 43×31×13 cm |
| Airline fit | 95% |
| Price | $55 |
Feature by feature
| Jansport Field Pack | Feature | STM Trilogy |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| Y | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | N |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | |
Key differences between the Jansport Field Pack and STM Trilogy
- Passport pocket: Yes on the Jansport Field Pack; No on the STM Trilogy.
- Sternum strap: Yes on the Jansport Field Pack; No on the STM Trilogy.
Both have: backpack straps, laptop sleeve, built-in organizer, water bottle pockets, 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. 2 accept only the Jansport Field Pack, and 1 accept only the STM Trilogy.
Only the Jansport Field Pack fits
Air Tahiti, Gulf Air.
Only the STM Trilogy fits
Air Niugini.
Jansport Field Pack vs. STM Trilogy: which should you pack?
The Jansport Field Pack carries 4L more than the STM Trilogy (28L vs. 24L), while the Jansport Field Pack is the lighter pack at 0.56kg (vs. 0.64kg). For carry-on flexibility, the Jansport Field Pack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Jansport Field Pack; if you want to travel lighter, the Jansport Field Pack is the better call.