Vibe Headband Earmuff,NNR 29, Earmuff Style Over-the-Head, Noise Reduction Rating 29 dB, Dielectric Yes, Cushion Material Nylon, Vinyl, For Use With Helmet, Cup Color Black, Series H70 Vibe, Standards ANSI S3.19-1074, Band Material Nylon, Vinyl, Features Soft Padded Headband that Adjusts to Most Head Shapes and Sizes, Electrically Insulated Yes