Aviation-gradePC lenses are stable, non-friable and explosion-proof. Combined with the latest tech, designed using the HEV-Adsorb substrate absorptiontechnology. It canabsorb high-energy blue lightand provide 100% UV protection. Protecting your eyesightand eye skin, excellent comfort and high safety give you all-day protection at your digital life.Not only protect your beautiful eyes, but also combine trendy design.Metal octagon frame with various colors fit different fashion look for men/women.