The 30Montaigne BU sunglasses enhance the namesake line with a bold butterfly shape. The black acetate frame with blue lenses is adorned with a functional gold-finish metal 'CD' signature. A statement frame for a style that is definitively Dior. Black acetate frame. Blue lenses. Thin gold-finish metal temples with a signature 'CD' hinge. 100% UVA/UVB protection. Filter category: 3. Not suitable for prescription. Made in Italy