Giro nine mips multisport helmet 2017 features giros multi directional impact protection system which is highly shock absorbent in mould construction makes the helmet extremely lightweight super cool vents keep you fresh all day by being optimally positioned to pull hot air out and draw cool air in thermostat control button allows you to adjust the airflow on the go for customized cooling stack vent aligns with the top of your goggles to draw warm moist air away and avoid goggle fog this helm