The RC300 is Shimano’s high-performance Road cycling shoe with advanced fit and pedalling technologies. This model features E-Width sizing, which offers a fit where the heel sits slightly deeper in the shoe, creating a better fit for longer and more comfortable rides. The Synthetic leather composite upper creates a superior fit with increased breathability and is integrated seamlessly into the midsole, setting a new level of fit, stability and lightweight performance. A surround wrapping structure on the upper reduces overlap and provides a glove-like fit.  The patented BOA L6 fit dial creates a sleeker profile and allows for quick on-the-go adjustments. The lightweight glass fibre reinforced nylon sole optimises pedalling efficiency and power transfer.