The Tecnica Machsport 110 HV Ski Boots is a perfect fit for intermediate to advanced level skiers with a high-volume foot who also want a high performing boot. Featuring Asymmetric Power Transmission, this is a revolutionary concept that is based on different thickness of the shell and liner structures. The inside of the shell is slightly thicker and stiffer and the outside of the shell is thinner and more flexible. This increases lateral power transmission and edge grip, while also giving you more control. A C.A.S. Liner has revolutionized the ski boot world in terms of fit and customization. C.A.S. is a durable dual density material that can be customized in four ways - thermo-shaping, punching, grinding or by applying fit kit patches. It has a low pack-out rate, maintaining a great fit over a longer period. With A 110-millimeter flex that is ideal for advanced riders getting after it in the resort without ever feeling punishing or overbearing. The Tecnica Machsport 110 HV Ski Boots efficiently transfers all your energy directly into the turn with seamless transitions. Get ready to take your skiing to a whole new level.