- Upper: Open-cell knit with TPU – breathable, lightweight, and abrasion-resistant- Closure: Dual NUUN 001C aluminum dials – fast, precise, and aerodynamic fit adjustment- Instep: Anatomical TPU High-Density Instep – secure hold with reduced pressure points- Fit System: Firmor X internal wrap – stabilizes arch and enhances fit tension- Outsole: R3CC carbon composite – stiffness index 6 for balanced power and comfort- Cleat Setup: Independent cleat adjustment for rider-specific alignment- Replaceable Parts: Heel pads and dials fit 1 2 3 4 5 6 7 8 9 10 recreational performance stiffness 5 6 7 8 9 10 11 12 min max