E-A-Rsoft is made from a slow expanding, environmentally friendly, polyurethane foam material. We have successfully developed an Earplug that provides evenly distributed pressure, giving flexibility, a good seal with optimum comfort. E A Rsoft Yellow Neons are also available with a blue vinyl connecting Cord, for use in food manufacture and food process industries. Attenuation: SNR 36dB, H34dB, M34dB, L31d.