Antler Discovery 28L Backpack vs Zefal Urban Backpack
The Antler Discovery 28L Backpack is 28L and 1.17kg2.6lb; the Zefal Urban Backpack is 27L and 1.18kg2.6lb. The Antler Discovery 28L Backpack is 0.01kg0lb lighter. The Antler Discovery 28L Backpack fits the carry-on limit of 36 of 36 major airlines and the Zefal Urban Backpack fits 36; under the seat, 7 and 7 of 26.
| Spec | Antler Discovery 28L Backpack | Zefal Urban Backpack |
|---|---|---|
| Price | $195 | n/a |
| Volume | 28L | 27L |
| Weight | 1.17kg2.6lbBest | 1.18kg2.6lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27% | 27% |
| Dimensions | 45×31×20cm17.5×12×8in | 45×30×13cm17.5×12×5in |
| Laptop | 16.5"Best | 15" |
| Bottle pockets | 1 | n/a |
| Opening | n/a | Roll-top, Roll-up closure with leather straps |
| Warranty | Lifetime | n/a |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | Yes |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | Yes |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Bike-ready | No | Yes |
| Material | 100% recycled polyester with twisted ripstop reinforcement | RPET |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
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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.