Carbon composite soles that maintain consistent stiffness regardless of temperature or humidity solve a problem that plagues many performance road shoes. The Carbon Composite 20 platform under the Genius 10 injects carbon fiber into a nylon matrix, creating an outsole that delivers race-level power transfer without the weather sensitivity or long-term degradation that affects some carbon constructions. Sidi positions the Genius 10 as their versatile road chassis, capable of race-day duty while remaining comfortable enough for high-mileage training weeks.

Dual Tecno-3 dials distribute closure control across the entire shoe. The lower dial pulls from two anchor points to wrap the forefoot and midfoot against your foot's contours, while the upper dial handles instep tension independently. This split approach lets you fine-tune fit in specific zones rather than accepting a single tension setting across the whole upper. Sidi's proprietary wire material runs without binding through its guides, so mid-ride adjustments happen smoothly even when your hands are fatigued or gloved. The Soft Instep 4 Closure System works alongside the dials, using a wide anatomical strap backed by thermo-formed EVA to spread pressure evenly. Adjustable from both sides, this strap centers precisely over high or low insteps without requiring aftermarket modifications.

The Microtech Microfiber upper balances water resistance with breathability, manufactured using Sidi's Water-Tech process that eliminates solvent-based treatments in favor of water-based alternatives. Mesh panels positioned in high-heat zones handle ventilation during hard efforts. The integrated heel cup reinforces the rear of the shoe against deformation from sustained pedaling loads while holding the heel in an anatomically correct position. Reflective inserts on the heel improve visibility during low-light riding. A replaceable polyurethane heel pad protects the sole from pavement wear and provides traction when walking.... Read More