Forest is a round model made of bio-fine fine acetate with Japanese hinges, stainless steel rivets and a lock hole-shaped nose bridge for an aesthetics and a undeniably timeless feel. Unisex design and ideal for most shapes and sizes of face. 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 136mmightence 46.7mm 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.