The Dior SignatureO S5I Optical Frame is a sleek acetate square frame from Dior, featuring signature temple detailing for a refined everyday look. Key attributes: Black | Acetate | Lightweight | Durable frame | Includes original case, cleaning cloth, certificate of authenticity and guarantee | Square frame | Full-rim construction | Signature logo on temples | Details inspired by the DiorBookTote | Dimensions & fit: Lens width: 52 mm | Bridge: 20 mm | Temple length: 145 mm | Medium fit | Composition & care: Acetate