SUPERIOR CARVING POWER - THE ROSSIGNOL ALLSPEED 100 2020 SKI BOOT. With this boot, you get award-winning power and precision. The Rossignol Allspeed 100 2020 Ski Boot features a Sensor Blade shell for reduced weight and efficient energy transfer and an adjustable flex for a customized experience. The Thinsulate insulation keeps you cozy all day while enhancing foot support. FEATURESRegular FitAdjustable FlexOptimized Power TransmissionCustom ComfortInsulated Warmth and SupportGRIPWALK-