The Dynafit Radical Pro represents the pinnacle of ski touring boot engineering, designed for backcountry skiers who refuse to compromise between uphill efficiency and downhill performance. This premium alpine touring boot features the revolutionary Hoji Lock System that transforms your entire mountain experience with a single one-handed motion – seamlessly switching from the 60-degree cuff rotation that makes steep skinning feel effortless to a locked-down 120 flex powerhouse that rivals dedicated alpine boots on the descent. Built with premium Grilamid construction and the innovative Driving Spoiler 2.0 system, the Radical Pro delivers the rigidity and precision you need to confidently charge big mountain lines while maintaining the lightweight touring efficiency that gets you there fresh and ready to send it. Features Hoji Lock System enables one-handed transition between touring and skiing modes Driving Spoiler 2.0 slides inside cuff for maximum touring mobility then locks for downhill rigidity Ultra Lock Strap system creates super-stiff downhill structure for precise control Quick Step-In inserts provide easier binding engagement Three micro-adjustable buckles for customized fit and performance Thermo-moldable liner option for personalized comfort Dual-mode design balances touring efficiency with downhill performance Specification Value Weight 1400g (49.4oz) per boot (size 26.5) Last Width 103.5mm (4.07") Flex Index 120 Cuff Rotation 60° Forward Lean 11° Materials Cuff: Grilamid with Glass Fibers | Shell: Grilamid | Spoiler: Grilamid | Liner: Dynafitter 10