Etnia Barcelona Istanbul BKGR, Black/Green, 55-19mm, Prescription Glasses metal frame plastic lens non-polarized Lens width: 55 mm Bridge: 19 mm Arm: 140 mm 33 millimeters high 148 millimeters wide Comfort and design are the strong points of Etnia Barcelona glasses. Our exhaustive knowledge of facial features is transferred to each piece, thereby producing some of the most comfortable eyewear in the world. Working with the best strategic partners for each piece of a pair of eyeglasses provides us with the most technologically advanced resources: from the highest quality Barberini lens to the design of an intelligent hinge mechanism co-produced with Comotec. Etnia design and make their own eyewear, controlling the entire process, from the design of the first drawing to the production of all the components: glasses that are comfortable, that feel good on any face, with the bridge adapted to facial features, with ergonomic temple tips they like to make and wear good products.