19-1974: Method for the Measurement of Real-Ear Protection of Hearing Protectors and Physical Attenuation of Earmuffs..The earcups are designed for all-day, comfortable wear and are also adjustable and can be tilted up, down or stored onto the side of the hard hat or safety helmet to create a customized fit.These mounted earmuffs are tested to ANSI S3.
SINGLE SIZINGThis vest is available in single sizes to allow workers to order their exact size for a more tailored, performance-style fit compared to dual-size vests (*tip: for best single-size fit, select one size down from your normal T-shirt size).