【Super Photochromic Design】This amazing photochromic lens darkens the light gray lens based on the intensity of sunlight and UV rays. What's more, these glasses protect your eyes without interfering with your color perception. Coupled with its stylish rectangular design, it can always meet your daily dressing needs

【UV400 Polarized Protective Lenses】These sunglasses are superior to previous types of sunglasses in three ways - the lenses automatically adjust to reduced light conditions when moving indoors or outdoors. Second, polarized lenses reduce glare and glare. At the same time, 100% UV protection layer protects against harmful UVA/UVB rays

【Use occasions】Photochromic sunglasses can block the glare of sunlight well when you are driving, running, fishing, cycling or other outdoor activities. Keep your safety by your side

【High Strength Lightweight Material】Thanks to the use of innovative materials such as  Kynetium™, Grilamid®, Magnesium.

【It works well no matter day or night】Our sunglasses are made of special photochromic polarized lenses. When driving at night or in dark environments, the lenses are light-colored and transparent, which effectively reduces glare while improving visibility. It can effectively filter strong light during the day, enhance visual acuity, reduce eye fatigue, and keep eyes in the most comfortable state for outdoor activities.

feature

• Lightweight aluminum-magnesium alloy metal frame.
• Adjustable temples, nose pads and flexible arms give you a better, more comfortable fit. 
• UV 400 Protection: Sunglasses block all three ranges of UV radiation: UVA, UVB and UVC, and protect the human eye 100% from the harmful effects of the sun's rays. 
• Photochromic polarized lenses: Lenses reduce irritating reflections and glare caused by light reflecting off surfaces such as water, roads, sand or snow. They absorb 100% of UV rays and eliminate 99% of glare.
• Photochromic polarized lenses, the lenses are dark in bright sunlight but clear in low ambient light conditions.

Discoloration test method: