Saint Laurent M146 Optical Frame combines an oversized square silhouette with a refined acetate construction, designed for everyday prescription wear with a polished, effortless look. Key attributes: Black | Transparent | Acetate | Lightweight construction | Prescription compatible | Monogram hinge for reduced weight and comfort | Oversized square silhouette | Wide temples | Monogram hinge detail | Dimensions & fit: Eye size 54 mm | Bridge 19 mm | Temple 145 mm | Lens height 46.2 mm | Medium fit | Composition & care: Acetate | Clean lenses with a microfiber cloth; store in a protective case; avoid exposure to heat and harsh chemicals.