Shimano RC703 full competition shoe, inspired by the S-phyre, ultra-lightweight for optimal comfort and excellent performance while pedaling. Ultrarigid and lightweight carbon composite outsole. SHIMANO DYNALAST helps reduce the loss of braking effect. BOA Fit System with two L6 Z-type compact wheels ensures a perfect fit. Powerzone wire loop with front strap keeps the foot firmly in place. Soft, lightweight perforated synthetic leather upper provides excellent grip and ventilation. "Surround Wrapping" upper construction reduces overlap and provides a snug fit. Optimal air circulation between the upper, insole and outsole. Adaptive cupped insole. Color: Black.