River is made of a natural and light material, which allows our true cobalt blue color to illuminate in direct sunlight, in a surreal manner, identical to genuine cobalt blue glass items you already own. We buffed the shine to a traditional high gloss finish. Perfect with denim or crowds. This frame is ideal for any aged gentlemen with distinctly defined, and refined tastes. One Size: 44 . 24 . 145, and instructions for bespoke fit to be adjusted at home, are included. Backed 24/7 for Life.