Model: 0OO9189 Twoface™. Rooted in surf and skate culture, we went double-barrel with frame materials to create Twoface™, a rare look that pairs lightweight yet durable O Matter™ with lower rims of aluminum. Features: Lightweight O Matter™ frame material with Square O metal icon accents. Precision-formed aluminum lower orbital. 6 base lens geometry with HDO®. Available with Prizm™ lenses to enhance color, contrast and detail for an optimized experience. Polarized and Iridium® lens options available. Available with Oakley Authentic Prescription Lenses Power range +2.00 to -5.00.