Schuberth takes pride in making a quiet helmet. They put in the work too, testing in a wind tunnel and acquiring noise data before bringing helmets like the flip-front C3 Pro to market. It's resulted in peculiar little innovations. The helmet's exposed interior foam is flocked, for instance, for sound deadening, and tiny turbulators across the top of the visor smooth airflow. Together, it works. Shut the front of a C3 Pro and it seals up like a vault. The quiet and convenience has made it an easy helmet to reach for on my horrendous commute across LA.