SevenFriday Sunglasses Insane Evo II INS3B/02. Frame: Full stainless steel frame. Applied polished gun metal color TV shape signature. Foldable and removable side sun protectors in matte gun metal color. Nose pads: Adjustable silicone nose pads. Temple: 153mm. Gun metal color core wire. space blue transparent acetate front part and tip. Inlayed polished gun metal color 7F logo. Lenses: Diameter 54mm. Grey gradient category 3. Features: Frame in connection with the SEVENFRIDAY App, thanks to a NFC chip embedded in the left side temple tip, allowing secured authentication and registration. Packaging: Packaged in a collapsible natural cork box with red cleaning cloth.