These are Kaneko Optical glasses, a special order for BEAUTY&YOUTH. I purchased them and displayed them, but I have never used them. There is some dust on the lenses from being displayed. Please be aware of this. ■BEAUTY&YOUTH Special Order Item■ "KANEKO OPTICAL designed by UNITED ARROWS" A sophisticated collection of Japanese-made eyewear created through a collaboration between the skilled craftsmen at <Kaneko Optical> and <UNITED ARROWS>. The "Logan" eyewear features a sleek, slim Boston frame, giving a smart impression. The slim Boston shape gives a smart and gentle impression, with elegant metallic temples. The design is easy to incorporate into business attire. Comes with a dedicated case for convenient carrying. ・BLACK (Black frame x Clear lenses) ・Visible light transmittance: 90% ・Ultraviolet transmittance: 1.0% ・BEIGE (Clear brown frame x Clear lenses) ・Visible light transmittance: 90% ・Ultraviolet transmittance: 1.0% ＜KANEKO OPTICAL (Kaneko Optical)＞ Kaneko Optical, made in the BACKSTAGE of Sabae, along with a series of Japanese eyewear from Japanese eyewear craftsmen who inherit tradition, is a brand that conveys the passion and commitment of the craftsmen contained within to the world.