No Fur Photochromic Glasses: The lens of the cycling glasses will automatically change from light clear to deep color if the intensity of the ultraviolet are strong. The darkness of lens color on photochromic sunglasses depends on UV intensity. Eyes Protection: The cycling sunglasses for men women with photochromic PC lens with UV400 protection coating helps block harmful UVA and UVB rays, which can protect your eyes against strong sunlight, mud, dust when cycling or driving. Built-in Myopia Frame: Our photochromic sunglasses for men come with a myopia frame, which can be stuck in the frame near the nose clip. No installation tools are needed. You can enjoy cycling or outdoor activities even if you are myopia. Excellent Wearing Comfort: The mountain bike glasses with TR90 frame is super light only 30g, which equipped with adjustable nose pad and non-slip rubber temples, provide you with more comfortable wearing experience. Multifunctional Sports Glasses: VICTGOAL sports photochromic sunglasses for men women is stylish design and fit for men or women. Ideal for cycling, driving, running, mountain climbing or other outdoor activities.