- Upper: Micro Matryx® & Kevlar® – lightweight, breathable, and durable with zoned support- Closure: Dual NUUN™ 001C aluminum dials – precise fit with aero design- Fit System: Firmor X wrap + floating instep – secure, unified lockdown and arch support- Heel: Tool-free adjustable counter – customizable and removable for tailored fit- Footbed: Integrated heel design – full foot stability under power- Lasting Board: Internal nylon – optimized for energy transfer and structure- Outsole: R2FC full carbon with Nexus Bridge – stiffness index 11- Cleat Setup: Independent cleat positioning for custom alignment- Replaceable Parts: Heel stud,dials, removable insole"s fit 1 2 3 4 5 6 7 8 9 10 recreational performance stiffness 5 6 7 8 9 10 11 12 min max