The upper, is a new one-piece construction without the common shoe tongue. It fits your foot like a sock and is created by using a single piece of natural microfiber. This resilient proprietary fabric is highly breathable and works like a ventilator for the middle part of the foot.

Inside the upper we have devised a support system to maximize the power transfer to the pedal by wrapping the instep: the Power Wrap Support surrounds the instep and holds the foot in place, providing ergogenic aid during the pedal stroke and insuring zero wattage waste.

The Aluminum BOA® Fit System is a fast, effortless and precise fit system that offers micro adjustability in both directions. The pressure distribution across the instep and forefoot zones provides unrestricted comfort.

SOLESTAR insoles place the foot in the Optimal Neutral Position for enhanced comfort, stability and propulsion for improved performance and zero wattage loss.

The outsole, designed as a vertebral column, presents an absolutely rigid cleat area and a minimally flexible rear area: the rebound effect results in greater comfort, increased blood flow in venous return, less tendon and muscle overload.