The SI M Frame 3.0 PPE features a chemical resistant O-Matter® frame and Plutonite® lenses with HDO Optics for high-mass and high-velocity impact protection with the highest level of optical clarity.The lightweight frame design has a Hydrophilic Unobtainium® nosepad for a secure, no-slip grip even under wet conditions. A lightweight and soft rubberized gasket comes pre-installed and designed to fit snugly against the head to help block wind and dust.The clear lenses feature an anti-scratch coating on the front of the lens and a permanent anti-fog coating on the back surface. The Clear lens features 89% visible light transmittance, suitable for use in low light to no light conditions and UV protection of Plutonite® lens material that filters out all of UVA / UVB up to 400 nm wavelength.This model meets EN166 (EU) and ANSI Z87.1 (US) safety eyewear standards