Sherpani Crew Travel Backpack vs Timbuk2 Alcatraz Backpack
The Sherpani Crew Travel Backpack is 18L and 1kg2.2lb; the Timbuk2 Alcatraz Backpack is 18L and 0.99kg2.2lb. The Timbuk2 Alcatraz Backpack is 0.01kg0lb lighter. The Sherpani Crew Travel Backpack costs $29 less. The Sherpani Crew Travel Backpack fits the carry-on limit of 36 of 36 major airlines and the Timbuk2 Alcatraz Backpack fits 35; under the seat, 0 and 0 of 26.
| Spec | Sherpani Crew Travel Backpack | Timbuk2 Alcatraz Backpack |
|---|---|---|
| Price | $140Best | $169 |
| Volume | 18L | 18L |
| Expands to | 25L | n/a |
| Weight | 1kg2.2lb | 0.99kg2.2lbBest |
| Carry-on compliance | 100%Best | 97% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 48.3×29.2×17.8cm19×11.5×7in | 51×33×15.3cm20×13×6in |
| Laptop | 15.6" | 17"Best |
| Bottle pockets | 1 | n/a |
| Opening | main zip, front zip pocket with zipper lock, 3 in expansion zip | n/a |
| Warranty | Lifetime | Lifetime |
| Organizer | No | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | Yes | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | Sustainable nylon | Eco Cordura 1200 x 1500D recycled polyester canvas |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Sherpani Crew Travel Backpack | Timbuk2 Alcatraz Backpack |
|---|---|---|---|
| Qatar Airways | Carry-on | Fits | Too big |
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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.