Amazon.com | SHIMANO SH-RC300W Value-Packed Road Cycling 。Shimano RC3 cycling shoes deliver high-performance road racing features in a sleek, aerodynamic design. These SH-RC300 shoes utilize a seamless midsole construction and a glass fiber reinforced nylon sole to provide a stable pedaling platform and efficient power transfer. The perforated synthetic leather composite upper ensures a breathable, comfortable fit, while the center-mounted BOA L6 dial allows for quick, micro-adjustable tensioning across the foot. Designed with Dynalast technology, these shoes help reduce braking loss and improve pedaling efficiency for long rides. Keywords: Road Cycling, Biking, SPD-SL, BOA Fit System, Dynalast, Racing, Performance, Breathable, Lightweight, Power Transfer, Cleat Compatible, Athletic, Sportswear, Gear Good condition.