The Oakley Fuel Cell sunglasses feature a plastic frame with a smooth and clean silhouette. This collection uses PRIZM technology lenses which provide a high degree of light transmission control, resulting in high fidelity. They also feature High Definition Optics, which help increase visual clarity. Frame: Matte Black. Lens: Prizm Salt Water Polarized. Lens Size: 60 mm. Brigde: 19 mm. Temple: 130 mm.