✅PHOTOCHROMIC DESIGN - YIMI is not just another pair of polarised sports sunglasses, but an essential part of sports equipment. The magical photochromic lenses are based on the intensity of sunlight and ultraviolet lights, darkening the light grey lens. What's more, these glasses can protect eyes without interfering with your perception of colour.Polarized sunglasses cut glare and haze so your eyes are more comfortable and you can see better. | ✅UV400 POLARIZED PROTECTIVE LENSES - The polarized lens is anti-UV.100% UV400 protection coating, blocks 100% harmful UVA & UVB Rays and protect eyes perfectly.YIMI sunglasses are superior to other sunglasses- when moving indoors or outdoors, the lenses adjust to the reduced lighting conditions automatically.and the polarised lenses reduce flare and glare.it's perfect for cycling, running, fishing, driving, mountaineering, skiing or hiking, this sports sunglasses is also your fashion accessories | ✅LIGHTWEIGHT & SAFER EXPERIENCE. - One of the most annoying things about the metal sunglasses is that they could get too heavy. Added up with soft silicone nose pads, these glasses are constructed using special design techniques, ensure that you can stay at comfortable and safe at outdoor activities.it's also helpful to protect your eye and reduce eye fatigue. We focus on better and safer user experience, especially driving. It will filter out the dazzling light. | ✅TOP-END Sunglasses Technology: YIMI is not just another pair of polarised sports sunglasses, but an essential part of sports equipment. YIMI top-end sunglasses technology on lens and frame delivers highly durable and flexible solutions for maximum performance even on toughest occasions. It's perfect sports sun glasses for mens and womens. | ✅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.