3M™ Peltor™ Optime™ 95 over-the-head earmuffs feature a stainless steel headband for consistent force and effective hearing protection. The lightweight over-the-head earmuff features a stainless steel headband for consistent force and effective hearing protection. For noise levels up to 95 dBA.- Stainless steel construction resists bending and warping.- Earcup pivot points tilt for optimum comfort and efficiency.- Lightweight with liquid/foam filled earmuff cushions.- Color-coding for compliance sighting.- Noise Reduction Rating (NRR)*: 21 dB. CSA Class B. *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.3M is Leading the Advancement of Hearing Conservation™.