Knack Expandable Travel Duffel vs Portland Gear Cascade Duffle Bag Standard
The Knack Expandable Travel Duffel is 35L and 1.45kg3.2lb; the Portland Gear Cascade Duffle Bag Standard is 35L and 1.43kg3.2lb. The Portland Gear Cascade Duffle Bag Standard is 0.02kg0lb lighter. The Portland Gear Cascade Duffle Bag Standard costs $26 less. The Knack Expandable Travel Duffel fits the carry-on limit of 1 of 36 major airlines and the Portland Gear Cascade Duffle Bag Standard fits 1; under the seat, 0 and 0 of 26.
| Spec | Knack Expandable Travel Duffel | Portland Gear Cascade Duffle Bag Standard |
|---|---|---|
| Price | $165 | $139Best |
| Volume | 35L | 35L |
| Expands to | 48L | n/a |
| Weight | 1.45kg3.2lb | 1.43kg3.2lbBest |
| Carry-on compliance | 3% | 3% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 30.5×48.3×25.4cm12×19×10in | 29.2×52.1×29.2cm11.5×20.5×11.5in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Opening | zip top | wireframe top opening |
| Warranty | n/a | 2 years |
| 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 | Yes |
| Camera compartment | No | No |
| Material | Water-resistant 900 x 1200 denier high-twist high-density polyester, 150D antimicrobial nylon lining | 100% polyester with TPU matte coating |
| 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.