Dial Up your Performance Fit. For those seeking a Dialed In, Precision Fit in a supportive 120-flex boot, the all-new MachBOA HV 120 is designed for just that. Featuring a high-volume, anatomically shaped lower shell designed specifically to work with the BOA® Fit System, the MachBOA HV 120 provides unparalleled comfort infused with Tecnica’s performance ethos, making it the one boot you need to ski at your best from first chair to the closing bell. Last: 103mm Flex: 120 - for expert and more robust skiers Width: Heavy - for skiers with a wide foot's sole or for those who prefer a comfortable fit