GREENPORT Eyeglasses by Blackfin. Color: Gunmetal, Blue/Black, Army Green/Viridian Green, Blue/Silver, Red/Silver, Size: 53-18-145. Sophisticated yet bold, the Blackfin GREENPORT eyeglasses boast a rounded-off rectangle shape that challenges traditional design norms. The blend of vibrant colors and minimalist lines makes this model a statement piece for those who dare to stand out. Made from premium titanium, they are ultralight and flexible, ensuring a perfect fit. With the GREENPORT, you experience of wearing glasses will never be the same.