Changing outdoor light conditions doesn't require changing eyewear anymore. SmartLens does all the changing - automatically. The lens is "UV reactive", so it responds to the amount of Ultraviolet (UV) light it receives. It lightens or darkens as needed...going from clear to dark in just seconds. Why spend the money to buy multiple pairs of eyewear?

• Provides 22 to 77% visible light transmission based on the environment
• Unique half frame design with spring hinge temples for added comfort
• Soft adjustable nose bridge
• Micro-fiber bag and lanyard included
• Complies to ANSI Z87.1 high impact standards