ALPAKA Essential Backpack Pro (22L) vs Waterfly Adventure Nyx Rolltop Backpack 30L
The ALPAKA Essential Backpack Pro (22L) is 22L and 0.86kg1.9lb; the Waterfly Adventure Nyx Rolltop Backpack 30L is 22L and 0.86kg1.9lb. They weigh the same. The Waterfly Adventure Nyx Rolltop Backpack 30L costs $106.00999999999999 less. The ALPAKA Essential Backpack Pro (22L) fits the carry-on limit of 36 of 36 major airlines and the Waterfly Adventure Nyx Rolltop Backpack 30L fits 36; under the seat, 7 and 1 of 26.
| Spec | ALPAKA Essential Backpack Pro (22L) | Waterfly Adventure Nyx Rolltop Backpack 30L |
|---|---|---|
| Price | $149 | $42.99Best |
| Volume | 22L | 22L |
| Expands to | n/a | 30L |
| Weight | 0.86kg1.9lb | 0.86kg1.9lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27%Best | 4% |
| Dimensions | 45×27.5×18cm17.5×11×7in | 46×31×16cm18×12×6.5in |
| Laptop | 16" | 17"Best |
| Bottle pockets | 2 | 2 |
| Opening | zip main compartment | Roll-top, Roll-top main compartment with a buckle strap, plus a back zipper |
| Warranty | Lifetime | 10 years |
| Organizer | Yes | No |
| 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 | Yes | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | Axoflux 210D ripstop nylon exterior; Axoflux X-Grid 150D ripstop polyester interior; YKK zippers | Water-resistant film fabric, tear-resistant polyester, polyester lining |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | ALPAKA Essential Backpack Pro (22L) | Waterfly Adventure Nyx Rolltop Backpack 30L |
|---|---|---|---|
| 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 |
| 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.