Noise reduction rate of up to 24 decibels, helping to protect your hearing from wind and engine noise. The integrated precision filter reduces wind noise while allowing normal conversation without filtering important traffic sounds. Made from medical-grade silicone-free material, providing a comfortable fit for extended wear. Filters are replaceable and upgradable for use in custom fit ear molds. Reusable, fully washable tips and filters. Includes carrying case. ASNI and ECE certified.