The Youranium range is dedicated to custom comfort making it ideal for the most dedicated and professional anglers. A desired fit making it ideal for all day wear. Frame: Matte BlackLens Options: Glass Copper Photochromic Glass Copper Neon Features of Tonic All TONIC style lenses feature - Polarisation - with our custom filtration system, Crystalite Glass - the clearest glass lens available, SliceLens - at only 1.7mm thin, lighter than any other lens on the market, VistaView - decentered lens, important for true depth and distance, ARC - anti reflective coating to reduce “bounce back” on the inside of the lens. All TONIC frames are suitable for Prescription lenses, so please don't hesitate to contact us and organise a new pair of prescription sunglasses!