The Ruger Conix Ballistic Muffs are NRR 27db rated and meet ANSI S3.19 and CEEN352 requirements. The slim profile ear cups are memory foam padded and fold for easy storage and transport. The soft padded headband provides an adjustable yoke. Also included in the combo is a pair of safety glasses that meet the ASNI Z87+ high velocity impact protection requirements. They are anti-fog and anti scratch for durability and all day comfort.