Karakoram's Prime X-Carbon Binding is their premiere S-Tier binding for the extreme backcountry junky. As Karakoram's lightest binding, we can shred spines and carve lines with total feather-weight pleasure. Its carbon highback and light aluminum heelcup give our feet total connection underfoot making for the most responsive ride and stable ascent. Wide contact points under the baseplate help disperse our power evenly on the board for well-balanced bluebird runs all day long.