ALPAKA Metro Backpack (12L) vs Exped Skyline 12
The ALPAKA Metro Backpack (12L) is 12L and 0.8kg1.8lb; the Exped Skyline 12 is 12L and 0.84kg1.9lb. The ALPAKA Metro Backpack (12L) is 0.04kg0.1lb lighter. The ALPAKA Metro Backpack (12L) costs $30.94999999999999 less. The ALPAKA Metro Backpack (12L) fits the carry-on limit of 36 of 36 major airlines and the Exped Skyline 12 fits 36; under the seat, 10 and 0 of 26.
| Spec | ALPAKA Metro Backpack (12L) | Exped Skyline 12 |
|---|---|---|
| Price | $109Best | $139.95 |
| Volume | 12L | 12L |
| Weight | 0.8kg1.8lbBest | 0.84kg1.9lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 38%Best | 0% |
| Dimensions | 42×25×15.5cm16.5×10×6in | 49×26.9×18cm19.5×10.5×7in |
| Laptop | 14" | no laptop sleeve |
| Compartments | 2 | n/a |
| Opening | wide-opening zip main compartment | 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 | No | No |
| Camera compartment | No | No |
| Material | Axoflux 400D ripstop nylon exterior; Axoflux X-Grid 150D ripstop polyester interior; YKK AquaGuard zippers | 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 | ALPAKA Metro Backpack (12L) | Exped Skyline 12 |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| 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 |
| JetBlue Airways | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| United Airlines | Personal item | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.