Bellroy Classic Backpack 20L (Third Edition) vs Gregory Signal 20
The Bellroy Classic Backpack 20L (Third Edition) is 20L and 0.7kg1.5lb; the Gregory Signal 20 is 20L and 0.71kg1.6lb. The Bellroy Classic Backpack 20L (Third Edition) is 0.01kg0lb lighter. The Bellroy Classic Backpack 20L (Third Edition) fits the carry-on limit of 36 of 36 major airlines and the Gregory Signal 20 fits 35; under the seat, 7 and 0 of 26.
| Spec | Bellroy Classic Backpack 20L (Third Edition) | Gregory Signal 20 |
|---|---|---|
| Volume | 20L | 20L |
| Weight | 0.7kg1.5lbBest | 0.71kg1.6lb |
| Carry-on compliance | 100%Best | 97% |
| Personal-item compliance | 27%Best | 0% |
| Dimensions | 43×35×15cm17×14×6in | 52×28×19cm20.5×11×7.5in |
| Laptop | 16"Best | 13" |
| Bottle pockets | n/a | 2 |
| Compression straps | n/a | 2 |
| Opening | Panel access, drop-down zip opening, front admin pocket | large zippered main compartment |
| Warranty | 6 years | 50 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Yes |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | Canva Weave (70% recycled polyester, 20% nylon, 5% leather) | 100% recycled 300D polyester ripstop with PFAS-free C0 DWR, 135D recycled polyester lining |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Bellroy Classic Backpack 20L (Third Edition) | Gregory Signal 20 |
|---|---|---|---|
| Allegiant Air | Personal item | Fits | Too big |
| American Airlines | Personal item | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| Qatar Airways | Carry-on | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
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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.