ALPAKA Momentum Sling vs Kapten & Son Bergen Pro Crossbody 2L
The ALPAKA Momentum Sling is 2L and 0.28kg0.6lb; the Kapten & Son Bergen Pro Crossbody 2L is 2L and 0.3kg0.7lb. The ALPAKA Momentum Sling is 0.02kg0lb lighter. The ALPAKA Momentum Sling fits the carry-on limit of 36 of 36 major airlines and the Kapten & Son Bergen Pro Crossbody 2L fits 36; under the seat, 26 and 26 of 26.
| Spec | ALPAKA Momentum Sling | Kapten & Son Bergen Pro Crossbody 2L |
|---|---|---|
| Price | $89 | n/a |
| Volume | 2L | 2L |
| Weight | 0.28kg0.6lbBest | 0.3kg0.7lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 100% | 100% |
| Dimensions | 15×30×6cm6×12×2.5in | 15×23×6cm6×9×2.5in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Opening | wide-opening zip main compartment | Zipper |
| Warranty | Lifetime | n/a |
| 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 | No | No |
| Camera compartment | No | No |
| Material | Axodyne weatherproof composite; YKK AquaGuard zippers | 80% recycled PET, 17% PU, 3% polyester |
| 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.