Shimano SH-RC300 Size:47 The open binding mechanism is

The open binding mechanism is designed to better shed mud

2-year commercial

damper O-ring seals

preventing binding and ensuring consistent clamping force

Products using this technique:

Shimano SH-RC300 Size:47 The open binding mechanism isDetails High performance road cycling shoe with advanced fit and pedaling technologies. FEATURES Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance. Off set center flap mounted BOA L6 dial creates a sleeker profile with quick adjustments. Surround wrapping upper structure reduces overlap and provides a glove like fit. Low stack height midsole stabilizes foot and maximizes power transfer