PELTOR X1 Earmuffs, 22dB NRRA lightweight, low-profile earmuff designed for protection against low-level industrial noise and other loud sounds. It features an electrically insulated wire headband, often referred to as "dielectric”. The wire headband offers consistent pressure over prolonged wearing periods. Earcup pivot points tilt for optimum comfort and efficiency. Ear cushions and foam liners are replaceable. Ear Cushion Material: Polyurethane Foam; Noise Reduction Rate (NRR): 22 dB; Style: Over the Head; Weight: 0.406. 3m PELTOR X1 Earmuffs, 22 dB NRR, Black/Green, 1 Each Weight: 0.406 Compliance Standards: ANSI S3.19-1974; Noise Reduction Rating (NRR)b 22 dB. CSA Class A Global Product Type: Ear Muffs-Over the Head Noise Reduction Rate (NRR): 22 dB Quantity: 1 Each Post-Consumer Recycled Content Percent: 0% Total Recycled Content Percent: 0% Style: Over the Head Pre-Consumer Recycled Content Percent: 0% Ear Cushion Material: Polyurethane Foam Color(s): Black/Green