Challenge The Competition In The X-Ium Skate Boot. World Cup Design And A Race Fit Give The Boot A Responsive Feel And Podium-Worthy Precision. It Features The Same Full Carbon Cuff And Low Profile, Skate Specific Sole As The World Cup Boot. A Powerstrap Complements The Asymmetrical Lacing For A Precise Fit And Efficient Power Transfer On Snow.Features:Optimized Skate Flex:- Carbon Midsole Insert Provides Increased Stability And Precision For Optimized Skating PerformancePrecise Boot Flex, Fit:- Dual Core Technology Allows Targeted Boot Stiffness For The Most Responsive Feel Without A Weight PenaltyStability, Power Transmission:- Carbon Cuff Is Shaped To Match The Natural Shape Of The Foot For Maximum Stability And Power TransmissionBreathable Warmth:- Wintherm® Offers A Breathable Micro-Perforated Membrane That Reflects Heat Back Towards Its Source For Incredible Temperature Regulation, Comfort And WarmthCustomizable Fit, Comfort:- Thermoadjustable Liners Can Be Heat-Molded Around Your Feet For A Customized Fit And ComfortSpecifications:- Weight: 1135 GrFabrics:- Lining: Polyester + Win Therm Active Membrane- Construction Lower: Performance PvcTechnology:Expert Skate:- The Expert Skate Sole Features A Rigid Midsole Insert, Ensuring The Best Performance In The Propulsion Phases, Increased Stability And Precision, And Enhanced Comfort And Ergonomics For Unbelievable Snow-Feel.Thermo Adjustable Fit:- Heat-Moldable Liner Provides A Customized Fit For Increased Comfort, Precision And Warmth.Carbon Cuff:- Anatomically-Shaped, 100% Carbon Cuff Delivers Increased Lateral And Fore/Aft Stability For Maximum Power Transmission And Ultra-Lightweight Skating Performance.