PIP Bouton Optical Zenon Z-Lyte Safety Glasses Gray Lens Rimless Safety Glasses with Gray Temple, Gray Lens and Anti-Scratch Coating. These Safety Glasses provides unparalleled comfort and styling and is the lightest eye protection on the market. These glasses features include Weighing in at 16 grams, Z-Lyte brings in a new era of lightweight safety eyewear Modern wraparound lens style will look great on a variety of users Thin temple provides a secure fit without pressure Gray Lens Visible light transmission: 12% Darkening effect with little color distortion, best used outdoors in bright sun. Anti-Scratch Coating Treated front and back with a clear, scratch-resistant coating for a much harder surface that is more resistant to scratching. Rediscover Bouton® Optical. Nearly 40 years ago HL Bouton Co. Inc began producing eyewear for industrial workers with one thing in mind…give the workers safety glasses that they want to wear. Currently Bouton® Optical has nearly 50 distinctive shapes of safety eyewear - and some are even adjustable. Bouton® Optical also offers you the right lenses for your working environment. Anti-Scratch and Anti-Fog options are standard on many of their glasses and special treatments are available to extend the life of your eyewear while helping you see better by filtering light and reducing glare.