- Upper: Soft and lightweight microfiber with 3D mesh on tongue for great breathability- Closure: Single NUUN™ 002M dial – solid and practical to adjust the fit on the ride- Fit System: 3D mesh for comfort fit and breathability- Outsole: R2NC-2 nylon composite – stiffness index 5- Cozy: Millennium Insole- Replaceable Parts: dials, removable insole, 3 holes t-nut, heel stud fit 1 2 3 4 5 6 7 8 9 10 recreational performance stiffness 5 6 7 8 9 10 11 12 min max