Comfortable alternative to earmuffs. Optional breakaway cord hangs around neck when not in use. Designed to not interfere with safety glasses. Soft, PVC-free foam pods gently cap ear canal providing maximum comfort. Packaged with spare pods. NRR 25 (under-the-chin). Tested to ANSI S3.19-1974. ¨ The bright green color is a trademark of Moldex-Metric, Inc.