The Mach Sport HV 70 is specially designed for the beginner level skier with a large foot volume who prioritizes comfort, warmth and functionality. At 103mm wide, the Celliant liner increases circulation to optimize warmth and performance. If necessary, additional customization is possible thanks to the C.A.S. from Tecnica, to correct any specific fit issues. Dual Quick-Instep and Lift-Lock buckles make getting the boot on and off easy, and the 70 flex rating provides maximum, long-lasting comfort on the mountain (and off).