Kapten & Son Lisbon Duffle Backpack Medium 50L vs Langly Weekender Duffle Bag 50L
The Kapten & Son Lisbon Duffle Backpack Medium 50L is 50L and 1.8kg4lb; the Langly Weekender Duffle Bag 50L is 50L and 1.8kg4lb. They weigh the same. The Kapten & Son Lisbon Duffle Backpack Medium 50L fits the carry-on limit of 0 of 36 major airlines and the Langly Weekender Duffle Bag 50L fits 1; under the seat, 0 and 0 of 26.
| Spec | Kapten & Son Lisbon Duffle Backpack Medium 50L | Langly Weekender Duffle Bag 50L |
|---|---|---|
| Price | n/a | $99 |
| Volume | 50L | 50L |
| Weight | 1.8kg4lb | 1.8kg4lb |
| Carry-on compliance | 0% | 3%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 30×55×34.5cm12×21.5×13.5in | 33×51×30.5cm13×20×12in |
| Laptop | 15.6" | n/a |
| Compartments | n/a | 1 |
| Opening | Zipper | Top-loading, full length YKK waterproof main zip opens wide |
| Warranty | n/a | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | Yes | 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 | Yes | No |
| Load lifters | No | No |
| Shoulder strap | No | Removable |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 88% recycled PET, 8% PU, 4% polyester | Water resistant Rugged Twill cotton, lined, YKK waterproof locking zips |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Kapten & Son Lisbon Duffle Backpack Medium 50L | Langly Weekender Duffle Bag 50L |
|---|---|---|---|
| Singapore Airlines | Carry-on | Too big | Fits |
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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.