Photochromic Polarized Sports Ultra UV400 Polarized Wellington Perfect for and Spring Case Day Gift [JL] Sunglasses, Sunglasses, Lightweight,

[Basic Specifications] 　Visible light transmittance (when dimming): 12.7% - 29.3% UV protection rate: Over 99% 　Even though the surface appears black when dimming, visibility is quite high. The UV protection rate is also an astonishing 99%! 　The frame is made from an aluminum-magnesium alloy that is both strong and lightweight! It has excellent durability and heat resistance. 　The lenses are TAC polarized lenses, which are lightweight and impact-resistant. 　*TAC polarized lenses are made from a very lightweight and impact-resistant material. They are very easy to process. 　They are a perfect match for a variety of scenes, including outdoor activities, sports, and driving, and are also extremely effective at ensuring good vision. 　　・Overall size: Width approx. 145mm x Height approx. 50mm 　　・Lens size: Width approx. 60mm x Height approx. 50mm 　　・Temple length: Approx. 145mm 　　・Weight: Approx. 27g [Characteristics of photochromic lenses] Photochromic lenses are affected by the amount of UV rays that hit the lens. When there is a lot of UV rays, the photochromic color becomes darker. When there is little UV rays, the photochromic color becomes lighter. When the temperature of the lens surface is high, the photochromic ability weakens and the color fades. When the lens surface temperature is low, the photochromic ability is high and the color can remain dark. [Precautions for use] 　Although the lenses are not "pure black," the lens color is not transparent, so care must be taken when using them while driving at night. 　*When driving, the windshield itself may be UV-resistant, making it difficult to adjust the light. [Product Contents] Photochromic polarized sunglasses x 1, dedicated hard case x 1, soft pouch x 1, glasses cleaning cloth x 1, cleaning cloth x 1 [Lifetime warranty] This product comes with a lifetime repair warranty. It also comes with a 30-day money-back guarantee after purchase. Glasses that change color in response to UV rays Clear lenses indoors, colored lenses outdoors It has the characteristic of being colored when outdoors, and then recombining and fading when indoors as the ultraviolet rays are gradually removed. The lenses are tinted when you go outdoors and gradually fade when you come indoors, so you can use one pair in most situations.