Knack Series 2 Medium Expandable Pack vs Sympl Commuter Pack 24L
The Knack Series 2 Medium Expandable Pack is 24L and 1.4kg3.1lb; the Sympl Commuter Pack 24L is 24L and 1.45kg3.2lb. The Knack Series 2 Medium Expandable Pack is 0.05kg0.1lb lighter. The Sympl Commuter Pack 24L costs $6 less. The Knack Series 2 Medium Expandable Pack fits the carry-on limit of 36 of 36 major airlines and the Sympl Commuter Pack 24L fits 36; under the seat, 0 and 1 of 26.
| Spec | Knack Series 2 Medium Expandable Pack | Sympl Commuter Pack 24L |
|---|---|---|
| Price | $265 | $259Best |
| Volume | 24L | 24L |
| Expands to | 35L | n/a |
| Weight | 1.4kg3.1lbBest | 1.45kg3.2lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 4%Best |
| Dimensions | 48×30×11cm19×12×4.5in | 45.7×30.5×19.1cm18×12×7.5in |
| Laptop | 16" | 16" |
| Bottle pockets | 1 | 2 |
| Opening | Clamshell, suitcase-style lid, lay flat | Clamshell, clamshell main compartment, top access laptop compartment, tech caddy compartment, quick access front pocket |
| Warranty | n/a | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | No | 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 | Removable | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | 420D high-density nylon with PU coating, 840D ballistic nylon bottom | 100% recycled 420D CORDURA Ballistic Re/Cor nylon (Carbonate) with TPU coated lower and polycarbonate coated upper panels, 210D ripstop nylon lining, YKK AquaGuard exterior zippers, Duraflex hardware |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Knack Series 2 Medium Expandable Pack | Sympl Commuter Pack 24L |
|---|---|---|---|
| Frontier Airlines | Personal item | 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.