3M™ PELTOR™ X-Series Earmuffs deliver comfort, design, and protection in one groundbreaking earmuff line. Additionally, these earmuffs have earcup pivot points that tilt for optimum comfort and efficiency, as well as replaceable ear cushions and foam liners to help ensure proper equipment hygiene. 3M™ PELTOR™ X5 Earmuffs are designed for very high noise situations, offering a Noise Reduction Rating (NRR) of 31 dB for both headband and hard hat-attached models. The high attenuation provided by these earmuffs is a result of the combination of specially-formulated foam in the earcups and cushions and the innovative spacer and cup design.