The strengths of the Shimano SH-R170 road shoe are its fit, breathability and efficient carbon sole. Shimano continues to improve on their trademark fit with a breathable upper composed almost completely of mesh and supple synthetic leather to comfortably support your foot. A top-tier carbon sole with three-bolt drilling and unique toe vent delivers subtle, yet noticeable, airflow. Micro-adjust buckle and dual offset straps eliminate pressure points and dial in an awesome fit. 500 grams/pair.