Matsuda M3128 - RUTHENIUM / MATTE BLACK (M3128.SG.RTM-MBK.48) are round sunglasses made in Japan. They feature ruthenium frame with matte black straight temples, and gradient purple lens with 100% UV protection.

Made in Japan
- Color: ruthenium
- Material: titanium, acetate
- Lens: purple gradient
- Shape: round
- Size: eye 48mm / bridge 22mm / temple 135mm