Comfortably fits a wide range of head sizes. Ideal for workers with larger ears, or who wear hearing aids. Steel-wire construction with padded headband and precision micro adjustments. Features a new unique memory foam that combines denser and softer foam than previous models. Honeywell's Air Flow Control technology controls how sound reaches the ear, ensuring optimum noise attenuation across all frequencies. NRR 24 dB. CSA Class A certified. Black.