Easy-to-use sunglasses that change the color of the lens depending on the amount of ultraviolet rays. What is a dimming lens? ● In response to ultraviolet rays caused by sunlight, the lens color changes. - Transparent lenses at night and indoors, and sunglasses that cut glare outdoors. ● The higher the amount of ultraviolet rays and the lower the temperature, the darker the color. Recommended for people like this ● Those who want to use glasses & sunglasses in one ● Those who move a lot indoors and outdoors ● Those who do not want to increase luggage when traveling or leisure [Explanation] Boston-type sunglasses with a well-balanced silhouette and exquisite size. Designed with a focus on size, the Boston-type PG-04 features a classic atmosphere and a well-balanced silhouette that can be used unisex. It is easy to match with casual outfits, and it can be a good accent even if you just match it with one shirt. 【Features】 The frame is made from about two 500ml PET bottles, and weighs only 34 grams including the lens. ・ Since the shape of the nose and temples (vine part) is designed according to the skeleton of Japan, it is difficult to slip and is characterized by a light feeling that makes you forget that you are wearing it. ・Since no metal parts are used, there is no need to worry about rust or deterioration due to sweat or seawater. ・Blocks 99.9% of ultraviolet rays [Accessories] Lens wipe: Recycled PET bottles Foldable case: Recycled paper