The X-Shape MTX is a scaled down version of the Supershape for the advanced to intermediate skier- nearly as much technology, much lower price. MTX denotes "medium turn radius," and Intelligence Technology uses fibers placed in an argyle pattern in the core, in front of the binding. At faster speeds, vibrations are converted into electrical energy, and the forefront of the ski stiffens up. At slower speeds, the fibers stay limp, making the ski easier to manipulate and maintaining its ability to flex into its sidecut. Available only with the Power 11 D binding system.