HIGH QUALITY ORGANIC LENSES: CR-39 professional optical clear lenses that block 100% of the Blue Light under 410nm and 45% of the Blue Light on the 410nm - 450nm spectrum. Our lenses meet the perfect between color perception (almost transparent lenses ) and blue light filtering protection. As Barner is designed for people who does color-sensitive work, we need the clearest lenses with optimum protection. SUPER LIGHT ROUNDED FRAMES AND FLEXIBLE HINGES AND TEMPLES : our frames are made from the highest quality and they are super light weight. Their flexibility and light weight make them super confortable and your best choice to work with screens. Since they only weight 23g, you'll barely feel them on SAY GOODBYE TO EYE STRAIN, SLEEP BETTER AND REDUCE HEADACHES: protecting yourself and minimizing the overexposure to blue light will drastically improve your quality of life. Have a better sleep, improve your wellbeing and reduce your eye strain.