Gregory Nano 24 vs Patagonia Atom Daypack 24L
The Gregory Nano 24 is 24L and 0.59kg1.3lb; the Patagonia Atom Daypack 24L is 24L and 0.6kg1.3lb. The Gregory Nano 24 is 0.01kg0lb lighter. The Gregory Nano 24 fits the carry-on limit of 30 of 36 major airlines and the Patagonia Atom Daypack 24L fits 36; under the seat, 0 and 8 of 26.
| Spec | Gregory Nano 24 | Patagonia Atom Daypack 24L |
|---|---|---|
| Price | n/a | $109 |
| Volume | 24L | 24L |
| Weight | 0.59kg1.3lbBest | 0.6kg1.3lb |
| Carry-on compliance | 83% | 100%Best |
| Personal-item compliance | 0% | 31%Best |
| Dimensions | 53×28×23cm21×11×9in | 40.6×30.5×17.8cm16×12×7in |
| Laptop | no laptop sleeve | 13" |
| Bottle pockets | 2 | 2 |
| Compression straps | 2 | n/a |
| Opening | U-zip main compartment | n/a |
| Warranty | 50 years | Lifetime |
| Torso length | n/a | 38.1cm (15in) |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | Yes | Yes |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Removable | No |
| Sternum strap | Yes | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | 210D high density recycled nylon and 450D recycled polyester with PFAS-free C0 DWR, 135D recycled polyester lining | 7.3-oz 400-denier 100% postconsumer recycled polyester ripstop with PU coating and PFAS-free DWR, 200-denier recycled polyester lining |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Gregory Nano 24 | Patagonia Atom Daypack 24L |
|---|---|---|---|
| Air Arabia | Carry-on | Too big | Fits |
| Air India | Carry-on | Too big | Fits |
| Allegiant Air | Personal item | Too big | Fits |
| American Airlines | Personal item | Too big | Fits |
| British Airways | Personal item | Too big | Fits |
| easyJet | Personal item | Too big | Fits |
| Emirates | Carry-on | Too big | Fits |
| Frontier Airlines | Personal item | Too big | Fits |
| JetBlue Airways | Personal item | Too big | Fits |
| LATAM Airlines | Personal item | Too big | Fits |
| Qatar Airways | Carry-on | Too big | Fits |
| Ryanair | Carry-on | Too big | Fits |
| Volaris | Personal item | Too big | Fits |
| Vueling | Carry-on | 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.