Knack Expandable Sling vs Trakke Banana Crossbody Bag
The Knack Expandable Sling is 1.9L and 0.2kg0.4lb; the Trakke Banana Crossbody Bag is 2L and 0.2kg0.4lb. They weigh the same. The Knack Expandable Sling fits the carry-on limit of 36 of 36 major airlines and the Trakke Banana Crossbody Bag fits 36; under the seat, 26 and 23 of 26.
| Spec | Knack Expandable Sling | Trakke Banana Crossbody Bag |
|---|---|---|
| Price | $55 | n/a |
| Volume | 1.9L | 2L |
| Expands to | 2.3L | n/a |
| Weight | 0.2kg0.4lb | 0.2kg0.4lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 100%Best | 88% |
| Dimensions | 15.2×22.9×6.4cm6×9×2.5in | 16×33×11cm6.5×13×4.5in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Opening | zip top | main zip, rear zip pocket |
| Warranty | n/a | Lifetime |
| Organizer | No | 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 | No | No |
| Load lifters | No | No |
| Shoulder strap | No | Yes |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | Water-resistant 420D high-density nylon, 150D antimicrobial nylon lining | Dry-Finish Waxed Canvas outer and liner, cotton webbing, stainless steel hardware |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Knack Expandable Sling | Trakke Banana Crossbody Bag |
|---|---|---|---|
| AirAsia | Personal item | Fits | Too big |
| Singapore Airlines | Personal item | Fits | Too big |
| Vietjet Air | Personal item | 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.