Shimano RP5 Road Shoes. Stiffness, all day comfort, and pedaling efficiency are what the Shimano RP5 road shoes are all about. The sole is constructed of glass reinforced nylon with added stiffness supplied by a carbon composite plate where the cleat attaches that together ensures your wattage output is transferred into powerful, efficient pedal strokes. The shoe's upper is a sleek and supple synthetic leather with a mesh panel for breathability. The RP5's retention system features a ratcheting buckle that can be adjusted for optimal ergonomics coupled with a pair of Velcro straps that eliminate pressure points. Additionally, the shoe features Shimano's innovative Surround Upper that better encases the foot for optimal holding power as well as a superb level of comfort. And for the ultimate in versatility, the RP5's sole is compatible with both 3 bolt and 2 bolt cleat systems which makes these shoes perfect for road cyclists as well as those who prefer indoor spin classes.