Champs Luggage Onyx Essential Backpack vs REI Co-op Flash 22 Pack
The Champs Luggage Onyx Essential Backpack is 21L and 0.4kg0.9lb; the REI Co-op Flash 22 Pack is 22L and 0.4kg0.9lb. They weigh the same. The REI Co-op Flash 22 Pack costs $10 less. The Champs Luggage Onyx Essential Backpack fits the carry-on limit of 36 of 36 major airlines and the REI Co-op Flash 22 Pack fits 36; under the seat, 7 and 0 of 26.
| Spec | Champs Luggage Onyx Essential Backpack | REI Co-op Flash 22 Pack |
|---|---|---|
| Price | $70 | $60Best |
| Volume | 21L | 22L |
| Weight | 0.4kg0.9lb | 0.4kg0.9lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 27%Best | 0% |
| Dimensions | 44.5×30.5×15.2cm17.5×12×6in | 48×28×20cm19×11×8in |
| Laptop | 15.6" | n/a |
| Compartments | n/a | 1 |
| Bottle pockets | 2 | 2 |
| Opening | n/a | Top-loading |
| Warranty | 10 years | No fixed term |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Hideable |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | 1200D nylon | 70-denier recycled ripstop nylon with polyurethane coating (bluesign approved) |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Champs Luggage Onyx Essential Backpack | REI Co-op Flash 22 Pack |
|---|---|---|---|
| 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 |
| Volaris | 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.