For a clean, modern look while cruising around the city, the Smith Maze is your new go to bike helmet. In mold construction provides maximum protection and comfort at a minimal weight. Self adjusting Lifestyle Fit system is built to flex around your head for a dynamic fit that moves as you do additional lateral adjustability on the fit system arms accommodate a wide range of head sizes. X Static performance lining helps keep your helmet clean and odor free with its silver based anti microbial properties. AirEvac goggle ventilation moves air through external vents and internal channels for clear vision and maximum comfort. 9 vents provide plenty of airflow for gentle cruising. Weighs 10 oz..