Harber London Commuter Backpack vs Kapten & Son Helsinki 17L
The Harber London Commuter Backpack is 16.85L and 1.15kg2.5lb; the Kapten & Son Helsinki 17L is 17L and 1.1kg2.4lb. The Kapten & Son Helsinki 17L is 0.05kg0.1lb lighter. The Harber London Commuter Backpack fits the carry-on limit of 36 of 36 major airlines and the Kapten & Son Helsinki 17L fits 36; under the seat, 9 and 1 of 26.
| Spec | Harber London Commuter Backpack | Kapten & Son Helsinki 17L |
|---|---|---|
| Price | $389 | n/a |
| Volume | 16.85L | 17L |
| Weight | 1.15kg2.5lb | 1.1kg2.4lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 35%Best | 4% |
| Dimensions | 43×28×14cm17×11×5.5in | 46×26.5×14cm18×10.5×5.5in |
| Laptop | 16"Best | 15.6" |
| Opening | Top-loading, zippered main compartment under a magnetic leather lid | Zipper |
| Warranty | 1 year | n/a |
| Organizer | No | 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 | Yes |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | Full-grain leather and water-resistant fabric made of recycled plastic bottles | 47% PU, 50% recycled PET, 3% polyester |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Harber London Commuter Backpack | Kapten & Son Helsinki 17L |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| 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 |
| JetBlue Airways | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | 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.