SHIMANO Men's SH-R321 Road Shoe Synthetic Built to preform to the demands of the pro peloton, designed and engineered for superb fit, comfort, and maximum pedaling efficiency Upper: Heat moldable Custom-fit Technology Innovative"Surround"upper pattern provides perfect balance of holding power and absolute all-day comfort Custom-Fit insole, heat moldable insole with adaptable arch wedge provides custom natural foot Shimano Dynalast provides a precise fit and improves pedaling efficiency