Kapten & Son Bergen Crossbody 1.5L vs Knack Expandable Sling
The Kapten & Son Bergen Crossbody 1.5L is 1.5L and 0.2kg0.4lb; the Knack Expandable Sling is 1.9L and 0.2kg0.4lb. They weigh the same. The Kapten & Son Bergen Crossbody 1.5L fits the carry-on limit of 36 of 36 major airlines and the Knack Expandable Sling fits 36; under the seat, 26 and 26 of 26.
| Spec | Kapten & Son Bergen Crossbody 1.5L | Knack Expandable Sling |
|---|---|---|
| Price | n/a | $55 |
| Volume | 1.5L | 1.9L |
| Expands to | n/a | 2.3L |
| Weight | 0.2kg0.4lb | 0.2kg0.4lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 100% | 100% |
| Dimensions | 13×22×5cm5×8.5×2in | 15.2×22.9×6.4cm6×9×2.5in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Opening | Zipper | zip top |
| Organizer | Yes | No |
| 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 | 59% recycled PET, 36% PU, 5% polyester | Water-resistant 420D high-density nylon, 150D antimicrobial nylon lining |
| Last checked | 2026-10 | 2026-09 |
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.