Day Owl Backpack Pro vs Portland Gear Cascade Backpack Standard
The Day Owl Backpack Pro is 21L and 1.09kg2.4lb; the Portland Gear Cascade Backpack Standard is 21L and 1.08kg2.4lb. The Portland Gear Cascade Backpack Standard is 0.01kg0lb lighter. The Portland Gear Cascade Backpack Standard costs $46 less. The Day Owl Backpack Pro fits the carry-on limit of 36 of 36 major airlines and the Portland Gear Cascade Backpack Standard fits 32; under the seat, 7 and 0 of 26.
| Spec | Day Owl Backpack Pro | Portland Gear Cascade Backpack Standard |
|---|---|---|
| Price | $155 | $109Best |
| Volume | 21L | 21L |
| Weight | 1.09kg2.4lb | 1.08kg2.4lbBest |
| Carry-on compliance | 100%Best | 89% |
| Personal-item compliance | 27%Best | 0% |
| Dimensions | 43.2×30.5×12.7cm17×12×5in | 40.6×27.9×21.6cm16×11×8.5in |
| Laptop | 16" | 16" |
| 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 Backpack Pro | Portland Gear Cascade Backpack Standard |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air India | Carry-on | 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 |
| LATAM Airlines | Personal item | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
| Vueling | Carry-on | 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.