Aer City Sling 3 vs Harber London Everyday Sling Bag
The Aer City Sling 3 is 2L and 0.37kg0.8lb; the Harber London Everyday Sling Bag is 2L and 0.45kg1lb. The Aer City Sling 3 is 0.08kg0.2lb lighter. The Aer City Sling 3 costs $360 less. The Aer City Sling 3 fits the carry-on limit of 36 of 36 major airlines and the Harber London Everyday Sling Bag fits 36; under the seat, 25 and 26 of 26.
| Spec | Aer City Sling 3 | Harber London Everyday Sling Bag |
|---|---|---|
| Price | $89Best | $449 |
| Volume | 2L | 2L |
| Weight | 0.37kg0.8lbBest | 0.45kg1lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 96% | 100%Best |
| Dimensions | 12×33×7.5cm4.5×13×3in | 14×24×5cm5.5×9.5×2in |
| Laptop | n/a | no laptop sleeve |
| Opening | n/a | magnetic clasp |
| Warranty | Lifetime | 1 year |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | No |
| 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 | 1680D CORDURA ballistic nylon exterior (bluesign approved), lightweight nylon ripstop liner (bluesign approved), YKK zippers, Duraflex hardware | Full-grain leather |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Aer City Sling 3 | Harber London Everyday Sling Bag |
|---|---|---|---|
| Vietjet Air | 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.