Day Owl Slim Pro vs Portland Gear Cascade Backpack Compact
The Day Owl Slim Pro is 13L and 0.91kg2lb; the Portland Gear Cascade Backpack Compact is 13.5L and 0.91kg2lb. They weigh the same. The Portland Gear Cascade Backpack Compact costs $31 less. The Day Owl Slim Pro fits the carry-on limit of 36 of 36 major airlines and the Portland Gear Cascade Backpack Compact fits 36; under the seat, 22 and 14 of 26.
| Spec | Day Owl Slim Pro | Portland Gear Cascade Backpack Compact |
|---|---|---|
| Price | $135 | $104Best |
| Volume | 13L | 13.5L |
| Weight | 0.91kg2lb | 0.91kg2lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 85%Best | 54% |
| Dimensions | 39.4×27.9×8.9cm15.5×11×3.5in | 35.6×24.8×18.4cm14×10×7in |
| Laptop | 14" | 14" |
| Bottle pockets | 1 | 2 |
| Opening | Main compartment closes with a magnetic clasp | Pop-Top wireframe top opening, hidden security pocket |
| Warranty | Lifetime | 2 years |
| Organizer | Yes | Yes |
| 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 | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | First Mile waxed canvas made from 25 recycled post-consumer plastic bottles, 100% recycled polyester lining and trim, algae based foam, water repellant neoprene, conflict-free metal YKK zippers | 100% polyester with TPU matte coating |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Day Owl Slim Pro | Portland Gear Cascade Backpack Compact |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| Air France | Personal item | Fits | Too big |
| AirAsia | Personal item | Fits | Too big |
| KLM | Personal item | Fits | Too big |
| Lufthansa | Personal item | Fits | Too big |
| SAS | Personal item | Fits | Too big |
| Singapore Airlines | Personal item | Fits | Too big |
| Turkish Airlines | Personal item | Fits | Too big |
| United Airlines | Personal item | Too big | Fits |
| WestJet | 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.