Mach1 stands for pure performance and precise fit with an ultimate level of customization. High performance skiers looking to up their game will appreciate the directness of the new Asymmetrical Power Transmission shell. The newly redesigned low volume 98mm last which is supported by the C.A.S. fit system, delivers the ultimate level of power, comfort and control. The new LV 120 lives up to the Mach1 name. we also offer this boot on the Medium volume fit Built on a Mid Volume, 100 mm wide last the MV version is the ideal choice for people with “regular” shaped feet and has outstanding out-of-the-box fit. The shell and liner, with the C.A.S. custom fit system, offer more fit solutions for extra fine tuning.