PP Photochromic Glass Photochromic UV High Lens Change (Phenol Phthalein) Sunglasses, Lenses, Protection, Performance, Rapide, Men's, Women's (Black)

When outdoors during the day, the color becomes darker to protect your eyes. When indoors or at night, the colors fade and visibility becomes better. Since it is not affected by the environment, the hassle of removing it is reduced. Cuts more than 99% of UV rays, visible light transmittance (91% bleaching, 17% coloring) Made in the UK Light control glass lens (Rapid) A highly transparent and heavy acetate fabric made from acetylcellulose, which is made by reacting wood pulp cellulose with acetic acid. The hinge part is a highly rigid 5-piece hinge. Size: Frame width: 146mm Frame height: 46mm Temple length: 140mm Bridge width: 17mm Accessories: Soft case, lens cloth When outdoors during the day, the color becomes darker to protect your eyes. When indoors or at night, the colors fade and visibility becomes better. Since it is not affected by the environment, the hassle of removing it is reduced. ☆Sunglasses Shop Sunny☆ A sunglasses specialty store located in Ueno Ameyoko. We offer "eyewear" that pursues functionality and fashion, focusing on sunglasses, to satisfy end users. - Photochromic lenses are lenses that change color depending on the amount of UV rays. ＜BR＞ - The color becomes darker outdoors where UV rays are strong, and becomes closer to clear when indoors where UV rays are weak. ＜BR＞ ・Be careful as it takes longer to make the color lighter than it does to make it darker. ＜BR＞・Also, the color density changes depending on the amount of ultraviolet rays, not the brightness.