Sierra Safety CE 31.3dB Hearing Protection (Red) PREMIUM CONVENIENCE: Lightweight, foldable and perfect for adult and young adult sized heads. DURABLE DESIGN: From the headband to the ear cups, tested to stand up to high decibel noise. VERSATILE USE: Use for a NASCAR race or rock concert, or other loud or abrupt sounds. NOISE CANCELLING: Cuts out certain levels of sound, offering an encompassing noise cancelling effect.