Matsuda M3101 Optical Frame combines a bold hexagonal silhouette with hand-engraved metalwork for a refined everyday eyewear option. The design highlights lightweight titanium construction and hand-applied lacquer for a polished, sculptural look. Key attributes: Gray | Silver | Titanium | Lightweight construction | Durable metal frame | Adjustable titanium nose pads | Includes hard case and microfiber cleaning cloth | Compatible with prescription lenses | Hexagonal frame | Wide rim with signature M+N motif | Hand-applied lacquer | Engraved detailing | Dimensions & fit: Eye 52mm | Bridge 21mm | Temple 145mm | Standard fit | Composition & care: Titanium | Acetate | Wipe lenses with a microfiber cloth; store in included hard case when not in use.