Shimano Womens SH RC300W BICYCLE SHOES Disc Brakes 75 mm thread pitch SWMPB 24 HIB 0M38 75 mm thread pitch Highly Ventilated 3D Mesh Upper — Excellent airflow and quick drying design 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