Shimano SH-RC503E Wide Cycling Shoes Race Tech, Real-World Fit Riders with wider feet have long had to compromise between a shoe that fits and a shoe that performs. The SH-RC503E Wide solves that. The surround-wrapping upper conforms to your foot without the pressure points or hot spots that overlapping panels create, and the BOA L6C dial routes lacing all the way to the toe box so tension distributes evenly across the forefoot. The carbon-reinforced nylon midsole keeps the stack height low, which means a stable pedaling platform and efficient power transfer on every push. Recycled materials are built into the midsole construction without giving up any of that stiffness. Features Surround-wrapping upper reduces panel overlap for a glove-like, pressure-point-free fit BOA L6C dial with Shimano-engineered lace profile distributes tension evenly from heel to toe box, adjustable on the go Carbon fiber reinforced nylon midsole low stack height stabilizes the foot and maximizes power transfer Perforated synthetic leather upper keeps feet ventilated on long efforts Stiffness index 8 out of 12 serious performance without the weight or cost of a full-carbon flagship3-bolt road cleat compatibility works with SPD-SL and Look KEO systems with fore-and-aft position adjustment Recycled materials integrated into midsole sustainability built in without compromising stiffness or stability Wide last construction approximately 5% wider than the standard RC503 for a true fit without toe-box compromise | Shimano | Sh-Rc503E Wide Cycling Shoes Men's | Size 47 In Black | Nylon