The Tecnica Mach 1 LV is a high-performance boot designed for those skiers with a low-volume foot and lower-arch. With a stiff 130 flex and 98mm last this boot accommodates skiers who prefer a tighter fit for max performance. Bootfitter friendly, this boot offers CAS boot boards and CAS shells so they can be modified for the perfect fit. CAS modeable liners and Celliant Insulation allows for a customizable fit that keeps your foot warm. This high-performance boot is aggressive to ski and wear, but the outcome is very rewarding.