Shimano Womens SH RC300W BICYCLE SHOES Disc Brakes Its ergonomic design enhances mobility new Its ergonomic design enhances mobility and reduces drag Vented lenses improve air circulation and prevent fogging ntegrated seamless midsole and upper construction set a new level of fit stability and lightweight performanceOff set center flap mounted Boa® L6 dial creates a sleeker profile with quick adjustmentsSurround wrapping upper structure reduces overlap and provides a glove like fitRubber XC racing pattern outsole promotes stable pedal engagement and secure walking gripLow stack height midsole stabilizes foot and maximizes power transfer efficiencyPerforated synthetic leather composite upper enables superior fit and breathabilityLightweight glass fiber reinforced nylon sole for power transfer