Exped Cloudburst 25 vs Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L
The Exped Cloudburst 25 is 25L and 0.27kg0.6lb; the Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L is 25L and 0.27kg0.6lb. They weigh the same. The Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L costs $69.96000000000001 less. The Exped Cloudburst 25 fits the carry-on limit of 31 of 36 major airlines and the Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L fits 36; under the seat, 0 and 0 of 26.
| Spec | Exped Cloudburst 25 | Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L |
|---|---|---|
| Price | $99.95 | $29.99Best |
| Volume | 25L | 25L |
| Weight | 0.27kg0.6lb | 0.27kg0.6lb |
| Carry-on compliance | 86% | 100%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 53.3×27.9×20.3cm21×11×8in | 47×31×17cm18.5×12×6.5in |
| Laptop | no laptop sleeve | n/a |
| Compartments | 1 | 2 |
| Bottle pockets | n/a | 2 |
| Opening | Roll-top | Zippered main compartment |
| Warranty | 5 years | 10 years |
| Organizer | No | 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 | Yes | No |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | Recycled 70D taffeta nylon, PU coated (7,000 mm water column), fully seam taped, bluesign approved; EVA foam back pad | Eco-friendly nylon, polyester lining |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Exped Cloudburst 25 | Waterfly TransformerX 6.0 UltraLight Packable Backpack 25L |
|---|---|---|---|
| Air Arabia | Carry-on | Too big | Fits |
| Air India | Carry-on | Too big | Fits |
| Qatar Airways | Carry-on | Too big | Fits |
| Ryanair | Carry-on | Too big | Fits |
| Vueling | Carry-on | 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.