Mach1 MV 105 W is a performance ski boot designed for women with "normal" feet. With a flex of 105, this ski boot has Tecnica's C.A.S. (Custom Adaptive Shape) system with lots of customizable shell and inner shoe solutions, including a new thermo-mouldable cuff. The liner is made of lamb's wool with Celliant microcrystals. These convert body heat to infrared radiation, which stimulates blood circulation and increases heat. The integrated Lift-Lock system is a clever feature that sets the buckles at a 45 ° angle when the ski boot is open, making it much easier to take on and off.