Smith Optics Holt Park Helmet Bombshell Construction^15.8 oz/ 450 grams^Airflow Climate Control featuring 14 vents^Removable Goggle Lock^Skullcandy Audio Systems Available Bombshell Construction 15.8 oz/ 450 grams Airflow Climate Control featuring 14 vents Removable Goggle Lock Skullcandy Audio Systems Available