'The Siren' optical frames feature ready-to-wear clear blue light lenses, or take them to your optometrist to have them custom fit with your own prescription. The room quiets as she enters, heels clicking, silk blouse tucked just so. With all eyes on her, she adjusts her frames and begins. You couldn’t look away if you tried. Lens Width 50mm (2"), Bridge 19mm (0,7"), Temple 135mm (5,3")Ready-To-Wear Clear Lenses, CR39 Category 0Can Be Fit With Your Prescription By Your OptometristBlock Up To 30% Of Blue LightUV400, 100% Protection From UVA & UVB Plant-Based Acetate FrameVelvet Canyon Gold Toned Logo On TempleProtective Case For Safe-Keeping, Reusable Magnetic Box & Cleaning Cloth Velvet Canyon eyewear are made with the highest quality materials, and always with the environment in mind. Designed in France.