Serengeti San Remo Sunglasses, Shiny Hematite Frame, 555nm Lens Photochromic lenses constantly adjust to changing light conditions Spectral Control diminishes haze and distracting glare, enhances contrast and sharpens your vision 100% UVA/UVB Protectant, Ultra-Light Glass Lenses Titanium Frame/Acetate Temples and Spring Hinges