Tested according to ANSI specs S3.19-1974, Evader foam earplugs featuresoft, slow-recovery foam for extreme comfort and outstanding noise reduction to protectyour hearing. Designed for a comfort fit, they’re easy to roll down and insert, and theyexpand slowly for a low-pressure fit in virtually any size ear canal. Available corded anduncorded, they’re packaged in polybags to keep each pair clean.