Uvex Milan photochromic safety eyewear provides workers with the convenience of using the same pair of safety eyewear for both indoor and outdoor applications. This stylish, sport-inspired design features lenses that automatically adapt to changes in light conditions. When exposed to ultraviolet (UV) light, the lenses darken to minimize sunlight and glare that can cause eyestrain and fatigue. As the UV light is removed, the lenses return to their light state, ideal for general purpose indoor use. Add to that an array of comfort and adjustability features, and you have a winning combination of comfort, protection and style indoors or out. Meets ANSI Z87.