The 30Montaigne B7I sunglasses enhance the line with a sleek butterfly shape and urban elegance. The black acetate frame reimagines the functional CD signature hinge in gold-finish metal with a bead at its center covered in Swarovski® crystals. Completed by gray lenses, the style will lend a couture touch to any look. Swarovski® is a registered trademark of Swarovski AG Black acetate frame. Gray lenses. Engraved CD signature on the left lens. CD signature hinge in gold-finish metal and metal bead with Swarovski® crystals. Engraved Christian Dior signature on the right temple interior. 100% UVA/UVB protection. Filter category: 3. Suitable for prescription lenses. Made in Italy