Dior 30MONTAIGNEO S1I is a square optical frame that pairs classic proportions with a refined temple detail. Designed for everyday prescription wear, it offers a timeless silhouette suited to a variety of face shapes. Key attributes: Dark Havana | Acetate | Optical frame (prescription-ready) | Suitable for prescription lenses | Square frame | Signature CD logo on temples | Dimensions & fit: Lens width: 54 mm | Composition & care: Acetate | Metal | Clean with a soft cloth; avoid abrasive cleaners and harsh chemicals.