The Lange Shadow 120 LV ski boot pairs a Suspension Blade Dual Pivot design with Dual Core Technology, injecting two plastic durometers through the shell so the heel and spine stay stiff while the areas wrapping the foot and leg stay comfortable. Built on a narrow 97mm last for low-volume feet, the boot channels that stiffness into more power out of the turn without asking for more effort to get there. What Our Gearhead(R) Experts Are Saying:"I felt the dual-pivot design the moment I rolled into a hard-charging turn, snapping back with more energy than a standard boot gives up at the same flex. My narrow feet finally sit in a 120 flex without swimming in the shell."