Lowepro Flipside BP 300 AW III vs Lowepro Flipside Trek BP 350 AW
The Lowepro Flipside BP 300 AW III is 17L and 1.4kg3.1lb; the Lowepro Flipside Trek BP 350 AW is 17L and 1.4kg3.1lb. They weigh the same. The Lowepro Flipside BP 300 AW III costs $90 less. The Lowepro Flipside BP 300 AW III fits the carry-on limit of 32 of 36 major airlines and the Lowepro Flipside Trek BP 350 AW fits 35; under the seat, 0 and 0 of 26.
| Spec | Lowepro Flipside BP 300 AW III | Lowepro Flipside Trek BP 350 AW |
|---|---|---|
| Price | $189Best | $279 |
| Volume | 17L | 17L |
| Weight | 1.4kg3.1lb | 1.4kg3.1lb |
| Carry-on compliance | 89% | 97%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 46×31×22cm18×12×8.5in | 51×28×20cm20×11×8in |
| Laptop | 13" | no laptop sleeve |
| Compartments | n/a | 2 |
| Bottle pockets | 2 | n/a |
| Opening | Panel access, back panel + side access | Panel access, body-side + top |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | Yes | Yes |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | Yes | Yes |
| Material | 600D polyester, 600D polyester ripstop | nylon |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Lowepro Flipside BP 300 AW III | Lowepro Flipside Trek BP 350 AW |
|---|---|---|---|
| Air Arabia | Carry-on | Too big | Fits |
| Air India | Carry-on | Too big | Fits |
| Qatar Airways | Carry-on | Fits | Too big |
| Ryanair | Carry-on | 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.