CU30R Elvex ProGuard Logger Hat w/ Nylon Mesh Visor Shield & Ear Muffs Elvex’s ProGuard Loggers Safety Cap is a uniquely integrated system, which provides protection for head, face and hearing in a workable and practical solution. The black muffs provide a NRR rating of 25 db. Elvex’s nylon snap-on visor measures 6″ x 11″ and fits tight against the cap bill. Observe that appropriate safety glasses are always required in addition to any face protection. Replacement parts are available. Replacement parts: NV70 Nylon mesh shield FS12L Lexan shield VB30 Cap bracket HM2030 Ear muffs HK20 Muffs hygiene kit SC506R Cap Suspension