At just 22 grams, Ever-Lite is one of the lightest safety glass styles on the market. Choose from a wide variety of lens colors. Clear is intended for indoor use; gray provides exceptional glare resistance for outdoor use; amber is commonly used for indoor, low-light applications; blue enhances contrast for indoor application with excessive amounts of yellow or sodium vapor light; and mirrored lenses reduce glare in indoor/outdoor environments. All styles offer 99% protection from harmful UVA/B rays.