Aer City Pack Pro 2 20L vs Black Ember Citadel R3 20
The Aer City Pack Pro 2 20L is 20L and 1.24kg2.7lb; the Black Ember Citadel R3 20 is 20L and 1.25kg2.8lb. The Aer City Pack Pro 2 20L is 0.01kg0lb lighter. The Aer City Pack Pro 2 20L costs $46 less. The Aer City Pack Pro 2 20L fits the carry-on limit of 36 of 36 major airlines and the Black Ember Citadel R3 20 fits 36; under the seat, 7 and 7 of 26.
| Spec | Aer City Pack Pro 2 20L | Black Ember Citadel R3 20 |
|---|---|---|
| Price | $199Best | $245 |
| Volume | 20L | 20L |
| Weight | 1.24kg2.7lbBest | 1.25kg2.8lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27% | 27% |
| Dimensions | 44.5×30.5×18cm17.5×12×7in | 44×30×17cm17.5×12×6.5in |
| Laptop | 16"Best | 14" |
| Bottle pockets | 1 | n/a |
| Opening | Clamshell, clamshell (lay-flat main compartment) | main compartment zip, separate suspended laptop sleeve |
| Warranty | Lifetime | Lifetime |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | Removable |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | 1680D CORDURA ballistic nylon exterior (bluesign approved), ripstop nylon interior (bluesign approved), YKK zippers, Duraflex hardware | EmberTex PFAS-free 1220x600D nylon 6 with bonded laser-cut Hypalon panels, 200D ripstop nylon lining, YKK Aquaguard zippers, T6 anodized aluminum hardware |
| 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.