Knack Series 2 Large Expandable Pack vs Nomatic Travel Duffel Bag 30L
The Knack Series 2 Large Expandable Pack is 30L and 1.5kg3.3lb; the Nomatic Travel Duffel Bag 30L is 30L and 1.5kg3.3lb. They weigh the same. The Knack Series 2 Large Expandable Pack costs $15 less. The Knack Series 2 Large Expandable Pack fits the carry-on limit of 28 of 36 major airlines and the Nomatic Travel Duffel Bag 30L fits 31; under the seat, 0 and 0 of 26.
| Spec | Knack Series 2 Large Expandable Pack | Nomatic Travel Duffel Bag 30L |
|---|---|---|
| Price | $295Best | $310 |
| Volume | 30L | 30L |
| Expands to | 46L | n/a |
| Weight | 1.5kg3.3lb | 1.5kg3.3lb |
| Carry-on compliance | 78% | 86%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 55×36×11cm21.5×14×4.5in | 23×48×33cm9×19×13in |
| Laptop | 17"Best | 15" |
| Bottle pockets | 1 | 1 |
| Compression straps | 0 | n/a |
| Opening | n/a | duffel, multi-access main compartment |
| Warranty | n/a | 5 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | Yes |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Removable | Removable |
| Sternum strap | Removable | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Hideable | Yes |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 420D high-density nylon with PU coating, 840D ballistic nylon base | 90% Polyester / 10% Nylon, water-resistant |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Knack Series 2 Large Expandable Pack | Nomatic Travel Duffel Bag 30L |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air France | Carry-on | Too big | Fits |
| Air India | Carry-on | Fits | Too big |
| Avianca | Carry-on | Too big | Fits |
| Emirates | Carry-on | Fits | Too big |
| Gol Linhas Aereas | Carry-on | Too big | Fits |
| IndiGo | Carry-on | Too big | Fits |
| KLM | Carry-on | Too big | Fits |
| LATAM Airlines | Carry-on | Too big | Fits |
| Qatar Airways | Carry-on | Too big | Fits |
| Ryanair | Carry-on | Fits | Too big |
| United Airlines | Carry-on | Too big | Fits |
| Vueling | Carry-on | 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.