3M E-A-R Classic soft earplugs are made of proprietary thermal reactive foam. The plugs start out firm for easy fitting then soften from body heat for a comfortable fit. 3M E-A-R classic Soft is made of proprietary thermal reactive foam. The plugs starts out firm to allow for easy fitting then softens from body heat for a comfortable fit. Poly bag keeps each pair of uncorded earplugs clean before use.

Regular size fits most earcanals. Noise reduction rating (NRR) - 31 dB CSA class AL. The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is leading the advancement of hearing Conservation.