Oakley Socket 5.5 OX3218 321802. Socket 5.5 salutes Oakley's heritage of industrial design with signature style. The swept angles at the bottom of the lenses were inspired by our distinct sports eyewear, and with angled chamfers from a socket wrench. Oakley Glasses Frames OX3218 Socket 5.5 3218-02 Satin Pewter Men are a semi-rimless style with swept angles to the bottom of the lenses inspired by the sports eyewear Oakley are so synonymous with. Air filled silicone nosepads and Unobtanium stem sleeves give that comfort we all crave further enhanced by the integrated spring hinge mechanisms.