Knack Large Expandable Travel Duffel vs The Brown Buffalo Duffalo
The Knack Large Expandable Travel Duffel is 50L and 1.73kg3.8lb; the The Brown Buffalo Duffalo is 50L and 1.77kg3.9lb. The Knack Large Expandable Travel Duffel is 0.04kg0.1lb lighter. The Knack Large Expandable Travel Duffel costs $94 less. The Knack Large Expandable Travel Duffel fits the carry-on limit of 0 of 36 major airlines and the The Brown Buffalo Duffalo fits 0; under the seat, 0 and 0 of 26.
| Spec | Knack Large Expandable Travel Duffel | The Brown Buffalo Duffalo |
|---|---|---|
| Price | $185Best | $279 |
| Volume | 50L | 50L |
| Expands to | 73L | n/a |
| Weight | 1.73kg3.8lbBest | 1.77kg3.9lb |
| Carry-on compliance | 0% | 0% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 38.1×55.9×30.5cm15×22×12in | 35.6×55.9×35.6cm14×22×14in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Opening | zip top | butterfly-style main opening |
| Warranty | n/a | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | Yes | Yes |
| 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 | CORDURA 1050D ballistic nylon (DWR, PU2) or Challenge Sailcloth EPX400, full-grain leather handles, YKK RCPU2 zips |
| 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.