INTELLIGENT COLOR CHANGES: The color of the lens changes from light to dark depending on the intensity of the UV rays. the lenses darken in the open air, so you don't need to change the color of different lenses in different conditions. The lenses are effective against UV400 UV and protect your eyes. It is also suitable for night driving and other sports in the night, in daily use, the glasses can provide a good experience. lens shows you the most real and colorful world. Increasing contrast and deepening perception, thus perfectly protecting your eyes, ideal for partly cloudy to sunny conditions, also good for cycling, fishing, running, climbing, etc. Ultra glasses - 25g lightweight with anti-slip nose pad and rubber ear cushion, let your wearing more comfortable even long term. HIGH MATERIAL: Lenses made of PC, it's a elastic, explosion-proof and solid material, and the frame is made of TR90, flexible, wear-resistant.