Kapten & Son Åre Daypack Lite 13L vs Waterfly Adventure Nyx Rolltop Backpack 18L
The Kapten & Son Åre Daypack Lite 13L is 13L and 0.7kg1.5lb; the Waterfly Adventure Nyx Rolltop Backpack 18L is 13L and 0.74kg1.6lb. The Kapten & Son Åre Daypack Lite 13L is 0.04kg0.1lb lighter. The Kapten & Son Åre Daypack Lite 13L fits the carry-on limit of 36 of 36 major airlines and the Waterfly Adventure Nyx Rolltop Backpack 18L fits 36; under the seat, 9 and 20 of 26.
| Spec | Kapten & Son Åre Daypack Lite 13L | Waterfly Adventure Nyx Rolltop Backpack 18L |
|---|---|---|
| Price | n/a | $34.99 |
| Volume | 13L | 13L |
| Expands to | n/a | 18L |
| Weight | 0.7kg1.5lbBest | 0.74kg1.6lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 35% | 77%Best |
| Dimensions | 42×28.5×13.5cm16.5×11×5.5in | 38.1×27.1×13cm15×10.5×5in |
| Laptop | 14" | sleeve, size not published |
| Bottle pockets | n/a | 2 |
| Opening | Zipper | Roll-top, Roll-top main compartment with a buckle strap, plus a back zipper |
| Warranty | n/a | 10 years |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | Yes | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | Yes | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | 90% recycled PET, 10% polyester | Water-resistant film fabric, tear-resistant polyester, polyester lining |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Kapten & Son Åre Daypack Lite 13L | Waterfly Adventure Nyx Rolltop Backpack 18L |
|---|---|---|---|
| Air France | Personal item | Too big | Fits |
| ANA (All Nippon Airways) | Personal item | Too big | Fits |
| KLM | Personal item | Too big | Fits |
| Lufthansa | Personal item | Too big | Fits |
| Norwegian Air Shuttle | Personal item | Too big | Fits |
| Ryanair | Personal item | Too big | Fits |
| SAS | Personal item | Too big | Fits |
| Turkish Airlines | Personal item | Too big | Fits |
| Vueling | Personal item | Too big | Fits |
| WestJet | Personal item | Too big | Fits |
| Wizz 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.