Jansport Double Break vs. STM Grace
Two carry-on travel backpacks, compared spec for spec.
Jansport Double Break
| Capacity | 27 L |
| Weight | 0.4 kg |
| Dimensions | 42×31×14 cm |
| Airline fit | 95% |
| Price | $45 |
Feature by feature
| Jansport Double Break | Feature | STM Grace |
|---|---|---|
| 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 | N |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 400D Nylon Packcloth | 100% polyester |
Key differences between the Jansport Double Break and STM Grace
- Water bottle pockets: 1 on the Jansport Double Break; No on the STM Grace.
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. 179 accept both. 0 accept only the Jansport Double Break, and 1 accept only the STM Grace.
Only the STM Grace fits
Air Niugini.
Jansport Double Break vs. STM Grace: which should you pack?
The Jansport Double Break carries 7L more than the STM Grace (27L vs. 20L), while the Jansport Double Break is the lighter pack at 0.4kg (vs. 0.6kg). For carry-on flexibility, the Jansport Double Break fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Jansport Double Break; if you want to travel lighter, the Jansport Double Break is the better call.