Authentic Oakley OX8160 SIDESWEPT RX frames from $ for Women. The OX8160 SIDESWEPT RX come with a Satin Black Gold Plastic frame. Size: /19/141. Get lenses from VisionDirect: hand fitted by our opticians and made of the best quality lenses! All needs are covered: single vision lenses, computer lenses, but also bifocal and progressive lenses.