ALPAKA Bravo Backpack (23L) vs DEFY Bucktown Backpack
The ALPAKA Bravo Backpack (23L) is 23L and 1.2kg2.6lb; the DEFY Bucktown Backpack is 23L and 1.25kg2.8lb. The ALPAKA Bravo Backpack (23L) is 0.05kg0.1lb lighter. The ALPAKA Bravo Backpack (23L) costs $123 less. The ALPAKA Bravo Backpack (23L) fits the carry-on limit of 36 of 36 major airlines and the DEFY Bucktown Backpack fits 36; under the seat, 0 and 0 of 26.
| Spec | ALPAKA Bravo Backpack (23L) | DEFY Bucktown Backpack |
|---|---|---|
| Price | $175Best | $298 |
| Volume | 23L | 23L |
| Weight | 1.2kg2.6lbBest | 1.25kg2.8lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 47×30×18cm18.5×12×7in | 48.3×30.5×15.2cm19×12×6in |
| Laptop | 16" | 16" |
| Compartments | n/a | 2 |
| Bottle pockets | 2 | n/a |
| Opening | zip main compartment | two zip compartments plus front zip quick access pocket |
| Warranty | Lifetime | No fixed term |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | Axoflux 400D ripstop nylon exterior; 150D X-Grid ripstop polyester interior | 1050D water-resistant MIL-SPEC ballistic nylon exterior, 1000D water-resistant silver CORDURA lining, YKK AquaGuard zippers |
| Last checked | 2026-09 | 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.