The Simpson Diamondback Helmet features defined "Wave Eliminators" increase functionality from an aerodynamics aspect and reduce buffeting.Snell SA2015 CertificationManufactured in the USANewly designed shield pivot systemNewly designed shield latch opens with easeRecessed eye port offers a 100% shield sealM6 terminals hardware incorporated in helmet for head and neck restraint devicesRadio communications availableSide pipe air option available for $150