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