✅Brand New Photochromic Lens The magical photochromic lens is based on the intensity of sunlight and ultraviolet rays, by adjusting the color intensity of the lens. Constantly change the transmittance of the lens. Keep your eyes in the most comfortable state. Release the restraint of the eyes and effectively reduce symptoms such as eye fatigue. More importantly, he maintains high-definition color reproduction. Can protect the eyes without disturbing your perception of color. | ✅UV400 polarized light protection YIMI sunglasses are superior to other sunglasses. They have a professional-grade UV400 protective film that blocks 100% of harmful UVA and UVB rays and perfectly protects the eyes. When moving indoors or outdoors, high-strength polarized lenses can filter cluttered glare and effectively reduce haze and reflected light. It is very suitable for cycling, running, fishing, driving, climbing, skiing or hiking. These sports sunglasses are also your fashion accessory. | ✅Lightweight Safer Experience It is luxuriously made with aviation aluminum-magnesium alloy materials. Only 26G weight。People tend to forget they're wearing this eyewear due to the featherweight high tech metal making this frame sit unobtrusively on the face.12 layers of enhanced protection-double explosion-proof, impact resistant lenses。solutions for maximum performance even on toughest occasions. | ✅Perfect frame The YIMI eyeglass frame walks a fine line between a shape that suits nearly everyone, while avoiding a generic impression. This is most definitely not an ordinary frame. The unique lens shape blends the power of a rectangle with the sloping edges of an oval。 Incredibly thin temples are further enhanced with cleverly engineered spring hinges that move as the wearer moves.making it an ideal choice for men and women alike. | ✅LIFETIME & Money Back: Every polarized sunglasses come backed by a 100% for reliability and total satisfaction. Love your eyewear or your money back!YIMI provides lifetime after sale service for all YIMI sunglasses in case the purchasing is not satisfactory. Contact and you will get response within 24 hours! You have NO RISK to try.