Personalize your feel on the hill and let your personality fly on the hill. The Mach1 MV 120 is a boot for advanced skiers with medium volume feet. Precision, customization, and comfort are the calling cards of this ski boot. Stack angles from the ground up with a boot built fundamentally right -- including T-Drive technology that allows the boot to function in a much more efficient way. Fit to form with your foot, the C.A.S. technology of the liner ensures a great fit out of the box that can be finetuned for a personalized fit. Last: 100 Flex: 120 - for expert and more robust skiers Width: Medium - for skiers with medium foot's sole or for those who prefer a regular fit