Cabin Zero Classic Backpack 28L vs Gregory Nano 28
The Cabin Zero Classic Backpack 28L is 28L and 0.6kg1.3lb; the Gregory Nano 28 is 28L and 0.63kg1.4lb. The Cabin Zero Classic Backpack 28L is 0.03kg0.1lb lighter. The Cabin Zero Classic Backpack 28L fits the carry-on limit of 36 of 36 major airlines and the Gregory Nano 28 fits 30; under the seat, 13 and 0 of 26.
| Spec | Cabin Zero Classic Backpack 28L | Gregory Nano 28 |
|---|---|---|
| Price | $92 | n/a |
| Volume | 28L | 28L |
| Weight | 0.6kg1.3lbBest | 0.63kg1.4lb |
| Carry-on compliance | 100%Best | 83% |
| Personal-item compliance | 50%Best | 0% |
| Dimensions | 39×30×20cm15.5×12×8in | 54×31×23cm21.5×12×9in |
| Laptop | 15.6" | no laptop sleeve |
| Bottle pockets | 0 | 2 |
| Compression straps | 2 | 2 |
| Opening | Clamshell, Clamshell opening (single main compartment) | zippered main compartment plus drawstring top access under a zippered lid pocket |
| Warranty | Lifetime | 50 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Removable |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | Yes | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 600 denier polyester body, 200 denier polyester lining, YKK zips, abrasion-resistant, water-resistant | 210D high density recycled nylon and 450D recycled polyester with PFAS-free C0 DWR, 135D recycled polyester lining |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Cabin Zero Classic Backpack 28L | Gregory Nano 28 |
|---|---|---|---|
| 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 |
| ANA (All Nippon Airways) | Personal item | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Emirates | Carry-on | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| JetBlue Airways | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| Norwegian Air Shuttle | Personal item | Fits | Too big |
| Qatar Airways | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| Ryanair | Personal item | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
| Vueling | Carry-on | Fits | Too big |
| Vueling | Personal item | Fits | Too big |
| Wizz Air | 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.