Delta Plus UltraSonic Earmuffs 29NRR Oakley Prizm As part of the ESS

As part of the ESS Cross-Series eyeshield platform

flexible nasal pads and molded temples offer comfort and a secure fit for most face shapes and sizes

An all-purpose daytime lens with unbiased influence on color

the CDI's extra-thick polycarbonate lenses can be easily interchanged for quick adaptation to your environment

Delta Plus UltraSonic Earmuffs 29NRR Oakley Prizm As part of the ESSDelta Plus UltraSonic earmuff is our latest high performance muff with a stainless steel headband. This model has been designed to provide excellent full spectrum attenuation, as well as superb low frequency attenuation. UltraSonic uses a fork type headband for even distribution of pressure, and improved balance required for extra deep ear cups. Features: 29 dB NRR from certified US laboratory to ANSI S3. 19 1974 and 34 dB SNR tested to CE EN 352 1.