Incorporates features of resistance, stability, lightness, transpirability, water-repellency and eco-friendliness. It is manufactured using the “Water-Tech” water treatment. Lower environmental impact, less noxious emissions into the air and into the work environment and the fact that not solvents, but water-based products were used, is beneficial to the environment as well as the final user.SIDI’s TECHNO-3 SYSTEM dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit. SIDI’s famously reliable and replaceable closures are improved by an all new proprietary SIDI Wire material that is completely non-binding for intuitive and effortless on-the-fly adjustments. Like most SIDI small parts, the TECNO-3 BUCKLE is serviceable and replaceable.The reinforced heel keeps the foot in a optimal position and avoids the shoe being deformed by extreme performance or prolonged pressure.For walkability, Sidi cycling shoes come with a polyurethane heel pad, which can be replacedThe CARBON COMPOSITE 20 SOLE is in nylon and injected carbon fiber. The nylon keeps the technical features unchanged over time. The result is a light and stiff sole. The central part of the sole is graduated, with millimetric scale, to facilitate the correct fixing of the cleats. Equipped with replaceable polyurethane heel.