Sidi FAST

• TECNO-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. • SIDI HEEL CUP that stabilizes and supports the heel. Anatomically shaped plastic reduces heel slip and provides increased power transfer. Provides additional foot protection in the event of a crash. • The Carbon Composite 20 is the newest generation of injected carbon composite sole. The injected carbon creates a stiff sole while the nylon acts a barrier to water and temperature change creating a durable stiff sole. • Replaceable heel pad. • Regular \D\" width last for precise fit."