Doughnut Domestic vs Ortlieb Daypack Metrosphere
The Doughnut Domestic is 21L and 0.84kg1.9lb; the Ortlieb Daypack Metrosphere is 21L and 0.83kg1.8lb. The Ortlieb Daypack Metrosphere is 0.01kg0lb lighter. The Doughnut Domestic fits the carry-on limit of 36 of 36 major airlines and the Ortlieb Daypack Metrosphere fits 36; under the seat, 0 and 0 of 26.
| Spec | Doughnut Domestic | Ortlieb Daypack Metrosphere |
|---|---|---|
| Price | n/a | $220 |
| Volume | 21L | 21L |
| Weight | 0.84kg1.9lb | 0.83kg1.8lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 49×28×16cm19.5×11×6.5in | 50×30×15.5cm19.5×12×6in |
| Laptop | 15" | sleeve, size not published |
| Opening | n/a | Roll-top, roll closure |
| Warranty | 1 year | 5 years |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | Removable | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | Removable | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | Dimension-Polyant X-Pac, 420D Cordura Nylon | PU-coated nylon (ps33) |
| Last checked | 2026-10 | 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.