Matsuda Geometric Titanium Optical Frame combines precision Japanese craftsmanship with a lightweight geometric silhouette for refined everyday wear. The M3166 model pairs a thin titanium construction with a gold finish and includes the original case for secure storage. Key attributes: Yellow | Bg opt gold | Titanium | Lightweight | Durable | Prescription-ready | Includes original case | Geometric silhouette | Thin metal frame | Composition & care: Titanium | Wipe lenses and frame with a soft, lint-free cloth; store in the included case; seek professional adjustment or cleaning when needed.