Protect your hearing without weighing yourself down with these lightweight cans. Convertible headband provides behind-the-head, over-the-head or under-the-chin versatility. Large, pivoting ear cups with soft, foam-filled cushions keep you comfortably covered. Non-conducive, dielectric ABS construction enables use in a wide variety of environments. Low-profile-cup design. Material(s): ABS Plastic; Ear Cushion Material: Foam; Noise Reduction Rate (NRR): 20 dB.