【Edge Style, eyewear for Japanese people, exclusive model for Murasaki Sports!】 ● This model features the classic Boston shape and photochromic lenses that automatically change color depending on the amount of UV light. ● These convenient sunglasses can be worn anytime, indoors or outdoors. ≪Product Details≫ ・Size: Lens approx. 47 x 43mm, Bridge approx. 23mm, Temple approx. 149mm, Width approx. 143mm ・UV Transmission: 0.1% ・Lens Color: Light Gray ・Frame Color: Black ・The lens color automatically changes from light gray to smoke depending on the amount of UV light. ・Designed based on ergonomics to fit the Japanese skeletal structure. ・Cuts over 99% of UV rays