The X2 is an introductory touring boot with warmth and stability for all-around use. The boot's tall cuff and zip-up lace cover seal out snow, while a Thinsulate lining wraps your foot for warmth. The touring-specific sole and lateral heel support provide stability for all-around trail skiing. Ski Control, Walkability - The Sport Sole features Tech Grip for comfortable walking and central insert cleats for maximum precision and control on the ski Extra Warmth - 3M Thinsulate heat-retaining insulation delivers increased warmth in damp and cold conditions for all-day comfort and warmth Women's Fit - Our FW Fit offers reduced instep volume and narrower fit from midfoot through heel for increased comfort and precision Customizable Fit, Comfort - Thermoadjustable liners can be heat-molded around your feet for a customized fit and comfort