The Karakoram X-Carbon Splitboard Interface Binding pushes flex to a full 10 out of 10 on its carbon highback, delivering stiffer heelside support through hard-charging turns than a step-down binding can match. Titanium and aluminum hardware replaces standard fasteners throughout, cutting weight without cutting strength anywhere it counts. An asymmetric heelcup carries a high outside wall for solid power transfer on the skin track, while the dropped inside wall gives enough room to tuck a knee into a turn or tweak a grab on the way down. What Our Gearhead(R) Experts Are Saying:"I felt the stiffer highback the first time I dropped into a couloir with exposed rock on both sides. It held the edge through a hard heelside turn where a softer flex would have let my boot roll, and the dropped inside wall of the heelcup meant I could still tuck my knee without the binding fighting me."