Champs Luggage Onyx Modern II Backpack vs Day Owl Slim Pro
The Champs Luggage Onyx Modern II Backpack is 13L and 0.85kg1.9lb; the Day Owl Slim Pro is 13L and 0.91kg2lb. The Champs Luggage Onyx Modern II Backpack is 0.06kg0.1lb lighter. The Day Owl Slim Pro costs $10 less. The Champs Luggage Onyx Modern II Backpack fits the carry-on limit of 36 of 36 major airlines and the Day Owl Slim Pro fits 36; under the seat, 7 and 22 of 26.
| Spec | Champs Luggage Onyx Modern II Backpack | Day Owl Slim Pro |
|---|---|---|
| Price | $145 | $135Best |
| Volume | 13L | 13L |
| Weight | 0.85kg1.9lbBest | 0.91kg2lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27% | 85%Best |
| Dimensions | 43.2×30.5×11.4cm17×12×4.5in | 39.4×27.9×8.9cm15.5×11×3.5in |
| Laptop | n/a | 14" |
| Bottle pockets | n/a | 1 |
| Opening | n/a | Main compartment closes with a magnetic clasp |
| Warranty | 10 years | Lifetime |
| 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 | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | Water-resistant PU | 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 |
| Last checked | 2026-10 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Champs Luggage Onyx Modern II Backpack | Day Owl Slim Pro |
|---|---|---|---|
| Air Canada | Personal item | Too big | Fits |
| Air France | Personal item | Too big | Fits |
| AirAsia | Personal item | Too big | Fits |
| ANA (All Nippon Airways) | Personal item | Too big | Fits |
| JetBlue 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 |
| Singapore Airlines | 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.