Speed and efficiency, that's what it's all about when we're in the middle of a race or hard-core training session, and the RC502 Wide Cycling Shoe does the job of maximizing power transfer while improving comfort. A low stack height midsole helps stabilize the foot, and the upper structure wraps around to provide a glove-like fit. The integrated sole and upper construction make for stability, rigidity, and lightweight performance, and a light carbon fiber reinforced nylon sole provides superb power transfer.