Improve your hearing and your ride using our Hear Clear Wind Deflectors. Reduces turbulent airflow into your inner ear allowing better hearing and and reducing fatigue. *Up to 40% reduction in wind noise (based in real riding environments). *Up to 90% reduction of wind entering ear. *Clips onto helmet straps (make sure straps are snug against the side of your head). *Improves communication with other riders and hearing of potential dangers. *Reduces wind fatigue. *Blocks the cold in chilly conditions. *Molded with engineered plastic and wind dampening material.