The Mach1 90 MV is perfect for the intermediate to advanced skier that is looking for the fit and performance of the medium volume Mach1, with an accessible price tag. The Mach1 90 MV features the same anatomical C.A.S. Shell and Bootboard as well as stance and cuff but is coupled with a more comfort oriented, QuadraFit liner. The liner features advanced materials to give the boot a great, welcoming feel yet still maintains great level of performance. The great out of the box fit, and 90 flex make this a great blend of control, comfort and value.