• Lightweight O Matter™ frame material with Square O metal icon accents• Clip hinge mechanism that enables the eyewear to latch onto your t-shirt to secure eyewear• 4 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