All-day workouts just got easier with Ray-Ban RB8319 Chromance Polarized Sunglasses. These unique Ray-Ban sunglasses bring a glare-free, full-color experience that delivers peak performance. The square metal frames boast carbon-fiber temples and protective, polarized lightweight polycarbonate Chromance lenses with hydrophobic, anti-reflective coatings and advanced polar filters. Chromance technology brightens color, enhances contrast and provides unmatched clarity, for optical precision you simply have to see. Ray-Ban RB8319 Chromance Polarized Sunglasses combine style and technology to bring out the best in your own style and high-performance activity. Imported. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Polarized.