Supervent allows us to use larger airflow vents, while maintaining structural integrity Anti-microbial, washable comfort pads Locking buckle and sliders Vista fit system Low density layer (LDL) ùQuadCore; soft gel padding for rotational and low-g impact protection Contigo 3 EPS inner layer Unibody construction Features 21 vents. HELMET BICYCLE UNO CAMO WH/GY S/M