KastKing Coso Polarized Sport Sunglasses, 5 Color Interchangeable Lenses, Revo Lens for Glare Protection, Polarized Gray for All Purpose, Polarized Sunrise Yellow for Night Activity,etc.Ultimate Safety Impact Resistant, UV Eye Protection, Unbreakable TR90 Frame KastKing Coso superior quality performance sports sunglasses with PC (Polycarbonate) lenses are up to 10 times more impact-resistant than other lenses, meet the highest FDA 21CFR801.410 safety rating standard, and are coated to provide 100% eye protection from harmful UV rays. These amazing sunglasses made with Italian lenses are extremely lightweight (only 28g / 1 oz.) adding to your comfort for sports eyewear. KastKing- the ICAST award winning brand! KastKing's remarkable Coso sports sunglass series have 5 interchangeable lens colors to meet the demands of every lighting condition and activity. It's like having 5 different pairs of sunglasses. Sunrise Polarized Yellow lenses help with night driving or fishing, Revo Mirror for glare protection bright light activities, C-Clear for anti-fogging, haze and cloudy days, Polarized Gray for all around sunglasses, and Blue for general protection. KastKing Coso Sports Sunglasses have 100% REVO LMS technology coated lenses. REVO lenses selectively manage and filter all light in the color spectrum, with emphasis on blue light/HEV light. They are hard coated to resist scratching and block out 99% of all harmful UV rays up to 400 nanometers offering the best protection for eye health. Impressive Coso KastKing sunglass eyewear have amazing TR90 frames, so light and strong they are often referred to as plastic titanium, to create exceptionally lightweight eyewear for your comfort and are unbreakable sunglasses for safety and long life. Imprinted with the KastKing brand. Includes quality carrying case and lens cloth. Classic KastKing Eyewear Sports Sunglasses for men or women are the ultimate eye protection sunglasses. KastKing polarized sports glasses offer incredible light weight UV and impact eye protection for cycling, fishing, driving, fishing, running, and other sports or work.