MindShift Gear BackLight 18L vs Triple Aught Design Axiom S2 WX Pack
The MindShift Gear BackLight 18L is 18L and 1.6kg3.5lb; the Triple Aught Design Axiom S2 WX Pack is 19L and 1.63kg3.6lb. The MindShift Gear BackLight 18L is 0.03kg0.1lb lighter. The MindShift Gear BackLight 18L costs $235.25 less. The MindShift Gear BackLight 18L fits the carry-on limit of 36 of 36 major airlines and the Triple Aught Design Axiom S2 WX Pack fits 35; under the seat, 0 and 0 of 26.
| Spec | MindShift Gear BackLight 18L | Triple Aught Design Axiom S2 WX Pack |
|---|---|---|
| Price | $249.75Best | $485 |
| Volume | 18L | 19L |
| Weight | 1.6kg3.5lbBest | 1.63kg3.6lb |
| Carry-on compliance | 100%Best | 97% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 47×27×18cm18.5×10.5×7in | 50.2×30.5×12.7cm20×12×5in |
| Laptop | 13" | 16"Best |
| Bottle pockets | 2 | 1 |
| Opening | Panel access, rear panel | top-down main compartment, side-panel access to main and laptop compartments |
| Warranty | Lifetime | No fixed term |
| Organizer | No | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | No |
| Rain cover | Yes | No |
| MOLLE | No | No |
| Hip belt | Yes | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | Yes | No |
| Material | 420D Velocity and 420D high-density nylon | TexWax shell (85% cotton, 15% Cordura nylon, 12 oz canvas duck), 500D Cordura lining, Hypalon |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | MindShift Gear BackLight 18L | Triple Aught Design Axiom S2 WX Pack |
|---|---|---|---|
| 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.