The Mach1 LV 105 W is a performance women-specific ski boot built on a low volume, 98mm narrow last. With a flex rating of 105, this boot features Tecnica's C.A.S. (Custom Adaptive Shape) system with numerous fit solutions for the shell and liner, including a thermoformable cuff. Tecnica has covered the liner in lambswool with Celliant to increase warmth. The Women's Natural Stance puts you in the perfect balanced position while the Asymmetric Shell Design allows you to access all the energy and power of the ski and let's you rip any slope or condition.