Gregory Terros 25 vs Montane Trailblazer 25L
The Gregory Terros 25 is 25L and 0.83kg1.8lb; the Montane Trailblazer 25L is 25L and 0.85kg1.9lb. The Gregory Terros 25 is 0.02kg0lb lighter. The Gregory Terros 25 fits the carry-on limit of 30 of 36 major airlines and the Montane Trailblazer 25L fits 35; under the seat, 0 and 0 of 26.
| Spec | Gregory Terros 25 | Montane Trailblazer 25L |
|---|---|---|
| Price | n/a | $150 |
| Volume | 25L | 25L |
| Weight | 0.83kg1.8lbBest | 0.85kg1.9lb |
| Carry-on compliance | 83% | 97%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 52×31×23cm20.5×12×9in | 54×25.5×18.5cm21.5×10×7.5in |
| Laptop | 16" | n/a |
| Compartments | 2 | n/a |
| Bottle pockets | 2 | 2 |
| Opening | large zippered main compartment plus front zippered compartment | Top-loading, Bivi opening with quick release cord lock |
| Warranty | 50 years | Lifetime |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Yes |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | 500D x 600D and 900D 100% recycled polyester with PFAS-free C0 DWR, 135D recycled polyester lining | RAPTOR CROSS LITE 70D 100% recycled nylon with PFC-free DWR, reinforced recycled nylon base |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Gregory Terros 25 | Montane Trailblazer 25L |
|---|---|---|---|
| Air Arabia | Carry-on | Too big | Fits |
| Air India | Carry-on | Too big | Fits |
| Emirates | Carry-on | Too big | Fits |
| Ryanair | Carry-on | Too big | Fits |
| Vueling | Carry-on | Too big | Fits |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.