The Turbine offers an active look with the technology needed for all-day comfort. Unobtainium insert zones help the glasses to sit securely with grip that increases with perspiration. Oakley’s O Matter frame material is lightweight and durable, well suited to an active lifestyle, and Prizm lens technology lets you see with crisp and enhanced clarity.Lens: This lens is suitable for bright light conditions with a tint that increases contrast, specifically around open water, helping you see what is below the surface with more clarity. The Polarized filter reduces glare from surface reflections, making it a good choice for use around the ocean. The base lens tint is rose. Prizm technology blocks specific wavelengths of light while boosting others to provide maximum contrast and enhanced visibility. This greater clarity results in reduced reaction times and increased performance over a wide range of light conditions.VLT: 12% (CAT 3) - Visual Light Transmission, VLT, refers to the amount of light that penetrates a lens. A low percentage means less light passes through and a higher percentage lets an increased amount of light through. FeaturesFit: Regular - High BridgeSize: XX Large (lens width 65mm bridge height 17mm)O Matter frame material is lightweight, durable and offers all-day comfort Unobtanium nosepad and earsocks are non-slip and give increased grip with perspirationThree-Point Fit: Comfort and performance that holds lenses in precise optical alignmentHDO (High Definition Optics) lenses are impact resistant while letting you see with crystal clear clarityPrizm lenses optimise contrast and enhance color enabling you can see in greater detailHDPolarized lens minimises glare for greater clarity and clearer vision Iridium lens coating further reduces glarePlutonite lens material provides UV Protection filtering out 100% of all UVA, UVB up to 400nm Comes complete with a microfibre cleaning cloth