The Sidi Aeron XC redefines cross-country performance with race-ready construction and precision fit technology. A ripstop upper with TPU bumpers delivers lightweight durability and off-road protection, while dual NUUN 001C aero dials and Firmor X external reinforcement provide a secure, responsive feel. The tool-free heel adjuster locks in stability, and the X2FC full carbon sole (stiffness index 11) ensures maximum power transfer and reliable traction on technical terrain.

Key Features

• Ripstop upper with TPU/rubber bumpers — lightweight tear resistance and off-road impact protection
• X2FC Full Carbon Sole — stiffness index 11 with integrated toe lugs for maximum power transfer and impact support
• Dual NUUN 001C aero dials — fast, micro-adjustable tension control for a secure, tailored fit
• Adjustable instep + UNUM tongue — pressure-free, fast-adapting fit around the top of the foot
• Firmor X external reinforcement — lateral stability and locked-in heel feel
• Tool-free heel adjuster — fine-tune stability without tools
• Available in Jojoba, Ice White, and Black
• EU sizing: 40 to 48 (including half sizes)

Product Details

• Brand: Sidi
• Model: Aeron XC
• Type: Clipless MTB / XC Shoe
• Sole: X2FC Full Carbon, Stiffness Index 11
• Closure: Dual NUUN 001C dials + tool-free heel adjuster
• Colors: Jojoba, Ice White, Black
• Sizing: EU 40–48 (including half sizes)