Lowe Alpine AirZone Trek 45:55 vs Patagonia Black Hole MLC 45L
The Lowe Alpine AirZone Trek 45:55 is 45L and 1.68kg3.7lb; the Patagonia Black Hole MLC 45L is 45L and 1.6kg3.5lb. The Patagonia Black Hole MLC 45L is 0.08kg0.2lb lighter. The Lowe Alpine AirZone Trek 45:55 fits the carry-on limit of 0 of 36 major airlines and the Patagonia Black Hole MLC 45L fits 5; under the seat, 0 and 0 of 26.
| Spec | Lowe Alpine AirZone Trek 45:55 | Patagonia Black Hole MLC 45L |
|---|---|---|
| Price | n/a | $249 |
| Volume | 45L | 45L |
| Expands to | 55L | n/a |
| Weight | 1.68kg3.7lb | 1.6kg3.5lbBest |
| Carry-on compliance | 0% | 14%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 70×34×32cm27.5×13.5×12.5in | 56×37×19cm22×14.5×7.5in |
| Laptop | n/a | 15" |
| Bottle pockets | 2 | n/a |
| Opening | Top-loading, Lidded top opening plus zipped front entry, with a divider panel | n/a |
| Warranty | n/a | Lifetime |
| Organizer | No | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | Yes | No |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | Yes | No |
| MOLLE | No | No |
| Hip belt | Yes | Hideable |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | Yes |
| Luggage pass-through | No | Yes |
| Camera compartment | No | No |
| Bike-ready | No | No |
| Material | n/a | 300D 100% recycled polyester ripstop with recycled TPU-film laminate |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Lowe Alpine AirZone Trek 45:55 | Patagonia Black Hole MLC 45L |
|---|---|---|---|
| British Airways | Carry-on | Too big | Fits |
| easyJet | Carry-on | Too big | Fits |
| Frontier Airlines | Carry-on | Too big | Fits |
| Singapore Airlines | Carry-on | Too big | Fits |
| Southwest Airlines | 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.