- Upper: Ripstop fabric with rubber bumpers – lightweight, tear-resistant, and protective- Closure: Dual NUUN 001C aluminum dials – aerodynamic, precise, and secure fit control- Instep: Adaptive instep linked to dials – molds to foot for a personalized fit- Fit System: Firmor X internal support + tool-free heel adjuster – enhanced foot stability and alignment- Tongue: UNUM Ergo anatomical tongue – relieves pressure for consistent comfort- Outsole: X2FC full carbon with rubber lugs – stiffness index 11, built for grip, impact support, and efficient power transfer- Cleat Setup: Independent cleat adjustment for personalized positioning- 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