The NYX Sport Vision Carbon Professional offers sport sunglasses technology with a tight shield for maximum sun and wind blocking in a medium to small fit. These high performance, sleek sunglasses offer the ultimate protection and fit professional athletes demand in every sport. Each Carbon Professional Series sunglasses vision system includes: sport frame, THREE interchangeable lenses designed for specific climatic conditions, carrying case with zipper and hook, and a microfiber cleaning pouch. Frames are Grilamid TR-90 with memory nylon specifically designed to be flexible, durable and lightweight ensuring exceptional comfort, flexibility and extreme stress crack resistance. Form fitting temples create a comfortable soft firm fit. Polycarbonate, almost indestructible, lenses provide 100% UVA/UVB protection from the sun. NYX lenses have been ranked 2nd among 60 major national brands for optical clarity in the Optics Shoot Out conducted by an independent test lab. NYX lens tints have been specially developed to increase contrast and optimize overall visual acuity; as well as to increase distance vision, depth perception and to cut distracting haze. Users rave about NYX’s lightweight frames and great peripheral fields. The NYX “system” comes complete with THREE interchangeable lenses for high contrast in varying light conditions: 1) Deflector, a dark gray lens designed for bright sunny days; 2) the Neutralizer, a medium gray lens for partly cloudy days; and 3) Luminator, specially formulated yellow lens that filters blue light and increases contrast in low light conditions. NYX Eyewear is worn by triathletes and professionals in golf, tennis, shooting and cycling and is trusted by pilots for optical clarity and viewing liquid crystal displays. Improving your game, protecting your eyes and managing your vision for sports in all light conditions is the NYX mantra. Try them and you CERTAINLY will love them.