Stability, Control - A wide Rottefella Nordic BC sole delivers the stability and control for wider skis and varied snow conditions; Freedom and Control - Rossignol's Mobile Cuff optimizes fore/aft freedom and torsional rigidity for total control; Extra Warmth - 3M Thinsulate heat-retaining insulation delivers increased warmth in damp and cold conditions for all-day comfort and warmth; Customizable Fit, Comfort - Thermoadjustable liners can be heat-molded around your feet for a customized fit and comfort