Stylish design features the proprietary 3M Pressure Diffusion Temple Technology ? a scientific advancement that helps diffuse pressure over the ear and enhances temple comfort while not compromising the security of fit across diverse work forces, and has a soft nose-piece to help reduce slippage. Grey Scotchgard Anti-fog lens coating helps workers see clearly, longer. Polycarbonate lens absorbs 99.9% UVA & UVB.