Built on the same last as Giro's other high-performance shoes, this model gives you flexibility with a bonded and welded mesh upper and then provides support with a Dupont Zytel nylon sole. The result has fewer seams - and fewer pressure points - and then delivers a better fit for your ride through micro-ratcheting and an EVA footbed. Welded and bonded breathable mesh upper. Equipped with a secure ratcheting N-1 buckle closure and offset strap D-ring at mid-foot. Dupont Zytel nylon outsole uses a standard three-bolt mount. Molded EVA footbed with medium arch support controls odor with the Aegis antimicrobial treatment.