The Tecnica Men's Mach1 HV 110 Ski Boots offer high performance for intermediate to advanced that want to explore the whole mountain. These boots are constructed with the new C.A.S. technology shell that has an anatomical shape that matches the shape of the foot, allowing for a better out-of-the box initial fit, while the dimples on the shell offer less surface tension and facilitate heating, making customizing the shell easier and helping it retain the new shape better and longer. Their revolutionary asymmetrical concept is based on a different thickness of the shell and liner structures, as the inside shell is slightly thicker and stiffer while the outside of the shell is thinner and more flexible giving you an increased lateral power transmission, edge grip and sensitivity. Step into a whole different level with the Tecnica Men's Mach1 HV 110 Ski Boots!