Excellent noise attenuation meets exceptional in-ear comfort. Advanced air-pocket design and internal interlocking fins create a noise-blocking barrier that ensures optimal protection. Four-flange profile provides a soft, low-pressure yet solid, slip-free ear canal seal - eliminating that tight "plugged-up" feeling. Tapered shape and firm stem enable easy insertion and removal. AirSoft provides that highest attenuation in multiple-use earplugs at 27 NRR.