The Tecnica Mach1 HV 110 brings all the high powered abilities of the Mach1 to a high volume fit for those skiers that have a wider foot. The ski boots 110 flex rating is ideal for daily driving in a softer flexing boot while still being able to charge all over the hill. The boots Tdrive beam along the back of the boot provides a unique flex in the rear of the boot, providing a good flex and hard charging boot for a skier jonesing for a new daily driver ski boot.