Knack Large Expandable Travel Duffel vs Langly Weekender Duffle Bag 50L
The Knack Large Expandable Travel Duffel is 50L and 1.73kg3.8lb; the Langly Weekender Duffle Bag 50L is 50L and 1.8kg4lb. The Knack Large Expandable Travel Duffel is 0.07kg0.2lb lighter. The Langly Weekender Duffle Bag 50L costs $86 less. The Knack Large Expandable Travel Duffel 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 | Knack Large Expandable Travel Duffel | Langly Weekender Duffle Bag 50L |
|---|---|---|
| Price | $185 | $99Best |
| Volume | 50L | 50L |
| Expands to | 73L | n/a |
| Weight | 1.73kg3.8lbBest | 1.8kg4lb |
| Carry-on compliance | 0% | 3%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 38.1×55.9×30.5cm15×22×12in | 33×51×30.5cm13×20×12in |
| Laptop | no laptop sleeve | n/a |
| Compartments | n/a | 1 |
| Opening | zip top | 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 | No | No |
| Load lifters | No | No |
| Shoulder strap | Removable | Removable |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | Water-resistant 900 x 1200 denier high-twist high-density polyester, 150D antimicrobial nylon lining | Water resistant Rugged Twill cotton, lined, YKK waterproof locking zips |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Knack Large Expandable Travel Duffel | 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.