Matsuda Heritage Round Sunglasses combine classic round lenses with a distinctive perforated side shield for a heritage-inspired, machine-era look. The frame pairs high-grade titanium with sculpted Japanese acetate temples for refined durability and detailing. Key attributes: Blue | Antique Silver | Blue Gradient | Titanium | High-grade titanium construction | Durable metal-and-acetate build | Titanium nose pads | Contrasting metal side shield construction | Sculpted temple tips | Round lens shape | Perforated metal side shields | Sculpted Japanese acetate temples | Lost-wax cast side shield detail | Dimensions & fit: Eye 51 mm | Bridge 23 mm | Temple 130 mm | Base 6 | Composition & care: Titanium | Metal alloy | Japanese acetate