SIDI Ergo 6 Road Shoes Comfortable and Stable SIDI Ergo 6 featuring Firmor lateral technology, the foot is stabilized even during the most intense performances, delivering a feeling of total control. The shoes are engineered to adapt to the foot with their UNUN ergonomic shape upper for a premium comfort feeling. Weighing just 29, 81 grams, with 1. 2 mm high-tech engineered microfiber, Ergo 6 is there to last over time. Full Carbon sole, stiffness 11, it features an increased range of cleat adaptability with 75mm connection sections for personalized fitting. Features Premium perfection upper with engineered ventilation and integrated bumpers Seamless heel counter with Firmor lateral structures and millennium fit Dials system connected to Firmor with UNUN ergo anatomical tongue and individual pedal positioning R2FC full carbon sole with stiffness 11 and replaceable parts SPECIFICATIONSUpper Material Premium Perfection Upper Closure type Dials System Outsole R2FC Full Carbon Cleat Compatibility3-Bolt Intended Use Road Race | Sidi | Ergo 6 Road Shoes Men's | Size 43 In White