Composite bindings aren't cheap—they're purpose-built. Made from engineering plastics and composites, they shine in ultralight touring setups where every gram counts on the uphill. If you're doing long skin laps or hut trips, the weight savings can make a real difference in your day.
The trade-off is durability. Composite materials don't hold up to the same abuse as metal, so they're not the best choice for aggressive resort skiing or big impacts. They do absorb vibration well, which can feel smooth on snow, but some composites can become brittle in extreme cold. You'll also find composites in entry-level alpine bindings, where they keep weight and cost down for casual skiers.
If you're a dedicated tourer chasing vert, composite bindings are absolutely worth considering. For resort chargers or heavy freeriders, metal construction is the safer bet.