1. AntiReflective Lens Overexposure to UV light harms your eyes, so we use Ultra Violet protection in our lenses. The outer part of the lenses is not antireflective, so it controls the reflection of rays from the inside 2. HD Polycarbonate LensWith anti reflection highdefinition lens and no color difference, allowing the eyes to see clearly, and to be sure that colors are true and undistorted. 3. Scratch ResistantYour eyeglasses are always at risk of harmful scratching. Our lenses have a clear, scratchresistant coating on the front back, which creates a more professional shield protecting your glasses 4. MaterialThe frame was made of cellulose acetate propionate, it is lightweight and has more transparency and hypoallergenic. It's very comfortable for you to wear it during all day. You can wear our glasses for long periods in front of digital screens.