Jewelry, Eyewear and Watch Design FN-3 Sunglasses by PROJEKT PRODUKT The slim frame of a metallic wire is simple and unique but not excessive. Metal is a structure that hides the lens of the rim and the screw holds it from both ends and also they are firm and light. Regardless of gender, it's a colorful design that people can feel different atmosphere depending on lens colors. FN-3 is made of titanium, it's excellent to wear. Feel modern and the things we pursue and our theme which is Funk(retro) through the metal lines.