Doughnut Arizona vs Tom Bihn Synik 22
The Doughnut Arizona is 22L and 1.1kg2.4lb; the Tom Bihn Synik 22 is 22L and 1.1kg2.4lb. They weigh the same. The Doughnut Arizona fits the carry-on limit of 36 of 36 major airlines and the Tom Bihn Synik 22 fits 36; under the seat, 0 and 8 of 26.
| Spec | Doughnut Arizona | Tom Bihn Synik 22 |
|---|---|---|
| Price | n/a | $345 |
| Volume | 22L | 22L |
| Weight | 1.1kg2.4lb | 1.1kg2.4lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 31%Best |
| Dimensions | 48×28×16cm19×11×6.5in | 41×29×18cm16×11.5×7in |
| Laptop | 15"Best | 13" |
| Bottle pockets | 1 | 1 |
| Opening | Top-loading, Drawstring closure under a top cover with climbing rope buckle | Clamshell |
| Warranty | 1 year | Lifetime |
| Organizer | No | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | Removable |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Removable |
| Sternum strap | No | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | Yes |
| Camera compartment | No | No |
| Material | 600D Polyester | 400d UHMWPE/420d nylon Spectron ripstop exterior (default), 210d Cerylon interior (bluesign certified), 210d ballistic nylon lower back, closed-cell foam back panel |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Doughnut Arizona | Tom Bihn Synik 22 |
|---|---|---|---|
| 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 |
| Frontier Airlines | Personal item | Too big | Fits |
| JetBlue Airways | Personal item | Too big | Fits |
| LATAM Airlines | Personal item | Too big | Fits |
| Volaris | Personal item | Too big | Fits |
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.