Think Tank Airport Essentials 26L vs Timbuk2 Clark Commuter Backpack
The Think Tank Airport Essentials 26L is 26L and 2kg4.4lb; the Timbuk2 Clark Commuter Backpack is 26L and 1.83kg4lb. The Timbuk2 Clark Commuter Backpack is 0.17kg0.4lb lighter. The Timbuk2 Clark Commuter Backpack costs $6.75 less. The Think Tank Airport Essentials 26L fits the carry-on limit of 32 of 36 major airlines and the Timbuk2 Clark Commuter Backpack fits 35; under the seat, 0 and 0 of 26.
| Spec | Think Tank Airport Essentials 26L | Timbuk2 Clark Commuter Backpack |
|---|---|---|
| Price | $275.75 | $269Best |
| Volume | 26L | 26L |
| Expands to | n/a | 30L |
| Weight | 2kg4.4lb | 1.83kg4lbBest |
| Carry-on compliance | 89% | 97%Best |
| Personal-item compliance | 0% | 0% |
| Dimensions | 44×29×22cm17.5×11.5×8.5in | 50.5×34×11.5cm20×13.5×4.5in |
| Laptop | 16"Best | 15" |
| Bottle pockets | 2 | n/a |
| Opening | n/a | Roll-top, Double roll-top |
| Warranty | Lifetime | Lifetime |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | Yes | Removable |
| MOLLE | No | No |
| Hip belt | Removable | Removable |
| Sternum strap | No | Removable |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | Yes | No |
| Bike-ready | No | No |
| Material | 600D polyester, 1260D ballistic nylon, 420D nylon ripstop, DWR | Eco Cordura 1200 x 1500D recycled polyester with a water-resistant drop liner |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Think Tank Airport Essentials 26L | Timbuk2 Clark Commuter Backpack |
|---|---|---|---|
| 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 |
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.