- Corded for easy short term storage around the neck.
- 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
- Flame resistant—important for potential arc flash situations and for storage considerations
- Noise reduction rating (NRR) 29 dB. CSA Class AL