Monos Field Backpack vs Rab Nitron 18L Lightweight Pack
The Monos Field Backpack is 18L and 0.57kg1.3lb; the Rab Nitron 18L Lightweight Pack is 18L and 0.56kg1.2lb. The Rab Nitron 18L Lightweight Pack is 0.01kg0lb lighter. The Rab Nitron 18L Lightweight Pack costs $65 less. The Monos Field Backpack fits the carry-on limit of 36 of 36 major airlines and the Rab Nitron 18L Lightweight Pack fits 36; under the seat, 0 and 0 of 26.
| Spec | Monos Field Backpack | Rab Nitron 18L Lightweight Pack |
|---|---|---|
| Price | $175 | $110Best |
| Volume | 18L | 18L |
| Weight | 0.57kg1.3lb | 0.56kg1.2lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 48×30×18cm19×12×7in | 47×25×20cm18.5×10×8in |
| Laptop | 14" | n/a |
| Opening | Top-loading, Cinch top with hook-down top flap | Zipped entry, top pocket and large front stash |
| Warranty | n/a | Lifetime |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | No | No |
| 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 | No |
| Camera compartment | No | No |
| Material | Crinkled nylon outer, polyester fill, rPET liner | 100D ROBIC nylon ripstop |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
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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.