Montane Trailblazer 44L vs Tom Bihn Techonaut 45
The Montane Trailblazer 44L is 44L and 1.09kg2.4lb; the Tom Bihn Techonaut 45 is 45L and 1.1kg2.4lb. The Montane Trailblazer 44L is 0.01kg0lb lighter. The Montane Trailblazer 44L costs $250 less. The Montane Trailblazer 44L fits the carry-on limit of 1 of 36 major airlines and the Tom Bihn Techonaut 45 fits 14; under the seat, 0 and 0 of 26.
| Spec | Montane Trailblazer 44L | Tom Bihn Techonaut 45 |
|---|---|---|
| Price | $175Best | $425 |
| Volume | 44L | 45L |
| Weight | 1.09kg2.4lbBest | 1.1kg2.4lb |
| Carry-on compliance | 3% | 39%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 67×25×23cm26.5×10×9in | 36×56×23cm14×22×9in |
| Laptop | n/a | 17" |
| Bottle pockets | 2 | 0 |
| Compression straps | n/a | 0 |
| Opening | Roll-top, Roll top with bivi opening, plus a locking side zip into the main compartment | Clamshell, U-shaped |
| Warranty | Lifetime | Lifetime |
| Organizer | No | Yes |
| Shoe compartment | No | Yes |
| Hydration sleeve | Yes | No |
| Frame sheet | Yes | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Yes | Removable |
| Sternum strap | Yes | Removable |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | Yes |
| Camera compartment | No | No |
| Material | RAPTOR CROSS LITE 70D 100% recycled nylon with PFC-free DWR, RAPTOR CROSS 210D recycled base | 420D Spectron UHMWPE/nylon ripstop (also 630D or 1050D ballistic nylon) |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Montane Trailblazer 44L | Tom Bihn Techonaut 45 |
|---|---|---|---|
| AirAsia | Carry-on | Too big | Fits |
| Alaska Airlines | Carry-on | Too big | Fits |
| American Airlines | Carry-on | Too big | Fits |
| British Airways | Carry-on | Too big | Fits |
| Cebu Pacific | Carry-on | Too big | Fits |
| Delta Air Lines | Carry-on | Too big | Fits |
| easyJet | Carry-on | Too big | Fits |
| Frontier Airlines | Carry-on | Too big | Fits |
| JetBlue Airways | Carry-on | Too big | Fits |
| Qantas | Carry-on | Too big | Fits |
| Southwest Airlines | Carry-on | Too big | Fits |
| Vietjet Air | Carry-on | Too big | Fits |
| WestJet | 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.