Superior hearing protection combining with optimum comfort. Hearing protection devices are only effective when worn, so comfort is essential. VeriShield 100 Series fits a wide range of head sizes, have a wide cup opening with memory foam ear cushions, and cushioned headband. These ear muffs passively block noise by relying on the insulating materials of the ear cups to dampen sound. They're typically worn in areas where workers don't need to speak with one another and the goal is to block all or most surrounding noise. As the NRR of these ear muffs increases, they tend to get bulkier due to the larger ear cups and increased insulation materials. These ear muffs are electrically insulated with a noise reduction rating of 25 dB.