Canal cap hearing protector designed to be worn under the chin. Weighs only 10 grams. Suction cast comfort cushions trap air in the ear canal to achieve desired noise attenuation without entering the ear canal. Swiveling end caps for custom fit. Allows proper fit to varying angles of the ear canals. Hollow “memory” band doesn’t bore in, get slack, or become uncomfortable. All materials are non toxic and are easily cleaned in soap and water. CSA Class C. NRR: 17 dB.