[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. ・The lens is "BD8 BIO LENS" developed by a team of experts with more than 20 years of experience. ・When lenses are disposed of in landfills, microorganisms biodegrade them into carbon dioxide, water, and biomass and return to the soil. Our team of manufacturing and development experts has more than 20 years of experience in the production of high-performance biolenses and has been tested by Intertek, a global testing organization. ・Blocks 99.9% of ultraviolet rays 　 [Accessories] Lens wipe: Recycled PET bottles Foldable case: Recycled paper