Our RC703 competitive road racing shoes feature an optimized midsole structure that further enhances stability and comfort. It has a flattened area under the ball of the foot that more comfortably and efficiently transfers pedalling power. Small, strategically-placed ventilation and drainage ducts keep feet drier for more comfortable performance, rain or shine. High rigidity, hollow carbon midsole efficiently vents air and drains water. Sleek, low-profile crossover lacing pattern elegantly secures the forefoot. BOA Fit System with a pair of compact L6 type Z dials supports a precise fit. Breathable synthetic leather upper with enhanced ventilation and fit. Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance. Surround wrapping upper structure reduces overlap and provides a glove-like fit. SHIMANO DYNALAST promotes smoother pedaling and more efficient power transfer.