Photochromic glasses Lenses are clear when indoors or at night and automatically darken to a sunglasses tint when exposed to UV sunlight. Lenses will begin to clear as soon as they are away from UV sunlight, and will be noticeably lighter and mostly clear within a few minutes. They absorb UV radiation that can otherwise damage your eyes.
Comfortable, lightweight body that won't hurt your nose, always clean and well protected thanks to the free cleaning cloth and case Your glasses will always be clean and well protected thanks to the free cleaning cloth and case!
To avoid damage, never clean your glasses with paper towels or clothing or alcohol, and also avoid using household detergents or soaps. While a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings.