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. Features a +1.5 reading diopter to help workers who have difficulty reading small print or who are engaged in small detail work. Polycarbonate lens absorbs 99.9% UVA & UVB and meet the requirements of ANSI Z87.1- 2015 Standard as an Impact Rated spectacle. 3M Pressure Diffusion Technology allows temples to naturally adjust to individual head sizes reducing the need to stock multiple frames and work sites Weighing less than 1 ounce, the durable, snug-fitting, flexible nature of the SecureFit offers a more comfortable and personal fit than the old-fashioned "one-size-fits-all" glasses that are rigid and unyielding in design. These glasses adapt to the wearer, rather than the other way around. The snug fit also helps keep the glasses securely in place as the wearer looks up and down or side to side, reducing the need for frequent repositioning of the glasses due to head movement. The Science Behind 3M Scotchgard Anti-Fog Technology 3M Scotchgard Anti-Fog Technology brings higher anti-fog performance to safety eyewear, helping workers see more clearly to complete on-the-job tasks. The anti-fogging properties are based on 3M internal testing per EN168 test method when compared to traditional anti-fog coatings. Here is how the anti-fogging properties work. When microscopic water droplets land on lenses without any type of coating, they bead up and form condensation and fog, obscuring your vision. With 3M Scotchgard Anti-Fog Technology, the anti-fog coating produces a reduced-contact angle, flattening the water beads into a thin, transparent film of water that allows light to pass through.