Inspired by Oakley’s first true oversized snow goggle, Canopy, the new Flight Tracker has a classic, stylized shape, and an oversized full-rim toric design with an optimized field-of-view in all directions. With large, medium, and small sizes, Flight Tracker will fit a wide variety of faces and is engineered to integrate perfectly with most helmets.Specifications:- Light Transmission: 39%- Light Conditions: Snow And Overcast- Contrast: IncreasedTechnology:- Prizm™ Snow: Oakley’S Exclusive Lens Technology Designed To Enhance Color And Contrast So You Can See More Detail.