M3100 Sunglasses by Matsuda. Color: Antique Gold/Dark Brown / G-15, Antique Silver/Navy / Cobalt Blue, Brushed Gold/Matte Black / Blue Grey, Palladium White/Matte Black / Grey, Black/Matte Gold / Gold Mirror, Size: 47-23-145. Take a look at the Matsuda M3100 - a celebration of history and masterful design. The lightweight titanium frame is coated with precious metal and adorned with the brand's own M+N motif, offering the perfect combination of strength and style. Meticulously crafted by Japanese artisans, this bold design features hand-applied lacquer that adds distinctive character and showcases the intricate engraving of the pressed titanium rims.