High-Performance Xc Mtb Racing Shoe With Advanced Fit And Pedaling Technologies.Features:- Integrated Seamless Midsole And Upper Construction Set A New Level Of Fit, Stability And Lightweight Performance.- Off-Set Center Flap Mounted Boa® L6 Dial Creates A Sleeker Profile With Quick Adjustments.- Surround Wrapping Upper Structure Reduces Overlap And Provides A Glove-Like Fit.- Rubber Xc Racing Pattern Outsole Promotes Stable Pedal Engagement And Secure Walking Grip.- Low Stack Height Midsole Stabilizes Foot And Maximizes Power Transfer Efficiency.- Perforated Synthetic Leather Composite Upper Enables Superior Fit And Breathability.- Lightweight Glass Fiber Reinforced Nylon Sole For Power Transfer.Specifications:- Stiffness Index: 5- Best Match Pedal: Pd-M540, Pd-M520- Features_Seamless Midsole Structure: Yes- Features_Surround Wrapping Upper: Yes- Technology_Shimano Dynalast: Yes- Closure: 1 Boa (L6)- Upper Material: Synthetic Leather- Outsole Material: Rubber- Midsole Material: Glass Fiber Reinforced Nylon- Standard Insole: Cup Insole- Men´s Actual Weight (Size: 42): 332 GTechnology:Shimano Dynalast:- The Toe-Spring Section Of A Cycling Shoe Plays A Key Role In Supporting Efficient Pedaling. Too High, And It Causes Increased Tension In The Plantar, Calf, And Hamstring Muscles. Too Low, And You Get A Bowlegged, Inefficient Pedaling Form. Extensive Research By Shimano´s R&D Experts Has Produced A Superior Shoe Last Design With An Optimized Toe-Spring Section That Promotes A Smoother, More Energy-Efficient Upstroke. Built Based On Feedback From Pro Riders, Shimano Dynalast Helps Reduce Energy Loss On Long Rides, Letting You Keep More In The Tank For That Final Sprint To The Line.Upper Technology: - The Construction Of Our Uppers And Closure Systems Are Customized To The Characteristics Of Each Rider'S Foot. Our Surround Wrapping Upper Surrounds The Whole Foot With A Seamless Piece Of Leather, Which Creates A Better Fit With Fewer Gaps Between Shoes And Feet.Shimano Pedaling Dynamics:- Spd Is A System That Performs Whether You'Re On Or Off The Bike. It Makes Pedaling More Efficient With A Wide Variety Of Shoe And Pedal Styles And The Recess Cleat Makes Walking More Comfortable. You Can Pedal With Greater Efficiency, Stability And Comfort With The Spd System.Comfort To The Walk: - Shimano Invented Spd To Meet The Needs Of A Growing Frontier Lifestyle Called Mtb. By Eliminating Toe-Clips And Integrating The Pedal And Outsole Into A Single, Unified Power Transfer System, Shimano Changed The Industry, Not Only Boosting Power To The Pedal, But Also The Rider'S Control Over Increasingly Adventurous Styles Of Riding. Today There'S No Single Mtb Style, And No Single Spd Pedal To Match. It'S All Over The Landscape, From Fast Paced Xc Racing To Steep, Rocky, Wet, Rooted And Muddy Trails. Shimano Spd Pedals Are Keeping Up. The Legacy Of In-The-Dirt Dependability, Reliability And Sheer Endurance Continues As Shoe-Pedal Designs Evolve To Meet The Needs Of Your Personal Style Of Ride. System-Engineered. Rider-Tuned. You Choose.