Industrial browguard system features polycarbonate construction, optical class 1 clear visor material. Provides UV protection and can provide the same level of protection even at extreme temperatures. Supplied with Sonis Compact ear defenders. 31dB Standard Noise Reduction Polycarbonate Construction Adjustable Ratchet Strap Peakless Surface Wipe Only Optical Class: 1 Impact Protection Weight: 185g 31dB Standard Noise Reduction Polycarbonate Construction Adjustable Ratchet Strap Peakless Surface Wipe Only Optical Class: 1 Impact Protection Weight: 185g