The Matsuda M3101 Optical Frame pairs bold hexagonal titanium rims with signature M+N engraving for refined prescription wear. Hand-assembled in Japan, it blends distinctive detailing with lightweight comfort. Key attributes: Antique gold | Dark brown | Titanium | Lightweight construction | Made in Japan | Adjustable titanium nose pads | Tortoiseshell acetate temple tips | Includes hard case and microfiber cleaning cloth | Prescription lenses available | Hexagonal frame shape | Wide rim with M+N motif | Hand-applied lacquer and engraved detailing | Dimensions & fit: Eye 52mm | Bridge 21mm | Temple 145mm | Standard fit | Composition & care: Titanium | Acetate | Wipe with microfiber cloth; store in included hard case.