• Frame Material: Alloy
• Lenses Material: Polycarbonate
• Clip On Lens Sizes: 46mm,43mm,41mm (Please refer to table below for choice of Lens Sizes)
• Lenses Optical Attribute: Anti-Reflective

Blue light has a very short wavelength, and so produces a higher amount of energy. Studies suggest that, over time, exposure to the blue end of the lightspectrum could cause serious long-term damage to your eyes. Wavelengths are measured in nanometers (nm). 1 nanometer equals 1 billionth of a meter