Manufactured by hand carefully. The River Monture combines timeless influences with a know-how and a cup that allow them to carry them all life. A real essential monkey glasses. Manufactured by hand from organic and biodegradable acetate Carl Zeiss Vision 100% anti-UV Includes a protective case, a cleaning cloth and a storage box Width 139,9mmmightence 45.6mm The glasses : Although the blue hue improves the outlines around objects and improves color perception, it can also have a calming effect on the eyes. Wear blue lenses to reduce glare on time fog, fog and snow. All their glasses benefit from anti-scratch and anti-reflection treatment with 100% UVA / UVB protection. Made by the famous German manufacturer of Lentils and Optics Carl Zeiss.