Maxpedition Sitka Gearslinger vs Vertx Gamut 18L Sling
The Maxpedition Sitka Gearslinger is 15L and 1.04kg2.3lb; the Vertx Gamut 18L Sling is 18L and 1.18kg2.6lb. The Maxpedition Sitka Gearslinger is 0.14kg0.3lb lighter. The Vertx Gamut 18L Sling costs $1 less. The Maxpedition Sitka Gearslinger fits the carry-on limit of 36 of 36 major airlines and the Vertx Gamut 18L Sling fits 32; under the seat, 1 and 0 of 26.
| Spec | Maxpedition Sitka Gearslinger | Vertx Gamut 18L Sling |
|---|---|---|
| Price | $200.99 | $199.99Best |
| Volume | 15L | 18L |
| Weight | 1.04kg2.3lbBest | 1.18kg2.6lb |
| Carry-on compliance | 100%Best | 89% |
| Personal-item compliance | 4%Best | 0% |
| Dimensions | 45.7×26.7×17.8cm18×10.5×7in | 44.5×29.2×20.3cm17.5×11.5×8in |
| Laptop | 14.1"Best | 13" |
| Bottle pockets | 1 | n/a |
| Opening | Clamshell, Full clamshell | Zippered main compartment |
| Warranty | Lifetime | 2 years |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | Yes | No |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | Yes | No |
| Hip belt | No | No |
| Sternum strap | Yes | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | Yes |
| Camera compartment | No | No |
| Material | 1000D ballistic nylon, triple polyurethane coated, Teflon fabric protector | 500D nylon (Evergreen); 420D nylon mini ripstop (Depth Charge, Black) |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Maxpedition Sitka Gearslinger | Vertx Gamut 18L Sling |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air India | Carry-on | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| Vueling | 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.