Today, the revolution continues. It meets more wearer and environmental needs with its proprietary foam, preferred cylindrical shape and proven in-ear comfort. 3M E-A-R Classic Earplugs set the standard in hearing protection as the world's first foam earplugs Slow recovery, low pressure foam conforms to the shape of the ear canal for enhanced comfort and wearability Moisture-resistant—helps maintain a consistent expansion time, even in humid environments Textured surface helps keep earplugs in place 25 pairs in a pack
