Aer Slim Pack 2 vs Exped Skyline 12
The Aer Slim Pack 2 is 12L and 0.82kg1.8lb; the Exped Skyline 12 is 12L and 0.84kg1.9lb. The Aer Slim Pack 2 is 0.02kg0lb lighter. The Aer Slim Pack 2 costs $14.949999999999989 less. The Aer Slim Pack 2 fits the carry-on limit of 36 of 36 major airlines and the Exped Skyline 12 fits 36; under the seat, 7 and 0 of 26.
| Spec | Aer Slim Pack 2 | Exped Skyline 12 |
|---|---|---|
| Price | $125Best | $139.95 |
| Volume | 12L | 12L |
| Weight | 0.82kg1.8lbBest | 0.84kg1.9lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27%Best | 0% |
| Dimensions | 45×31×8cm17.5×12×3in | 49×26.9×18cm19.5×10.5×7in |
| Laptop | 16" | no laptop sleeve |
| Opening | n/a | long side zip |
| Warranty | Lifetime | 5 years |
| Torso length | n/a | 42.9 to 51.1cm (17 to 20in) |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | Yes |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | 1680D CORDURA ballistic nylon exterior (bluesign approved), 840D nylon face with weather-resistant coating, recycled nylon lining (bluesign approved), YKK zippers, Duraflex hardware | Recycled 450x300D polyester, PU coated (1,500 mm water column), bluesign approved, PFAS free |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Aer Slim Pack 2 | Exped Skyline 12 |
|---|---|---|---|
| Allegiant Air | Personal item | Fits | Too big |
| American Airlines | Personal item | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| Volaris | 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.