Designed for the beginner skier who prioritizes comfort, warmth and convenience in their ski boot, the Mach Sport HV 80 is specially built for skiers with high-volume feet. Designed with a 103 mm last, the Comfort Celliant liner increases circulation for optimized warmth and performance. If needed, you can add personal customization with Tecnica‰Û_Ìã̫s C.A.S. system to solve any additional fit problems. Double Quick-Instep and Lift-Lock buckles make for easy entry and exit, and the 80 flex is forgiving for all-day on (and off) mountain comfort.