Hobie Manchester Rectangle Sunglasses,Shiny Black Frame/Grey Lens,One Size Composite frame Composite lens Polarized 100% of UVA, UVB & UVC coating Lens width: 57 millimeters Lens height: 44 millimeters Bridge: 14 millimeters Arm: 124 millimeters Hobie lenses exceeds ansi z80.3 standards for refractive power, megol sweat bar, anti-fog basket, light transmission & impact resistance, color balance- proprietary polarized film for clear vivid color,ideal amount of blue light for enhanced vision. Hydroclean lenses are standard in all frames built for challenges of active sports and everyday wear, advanced hydrophobic coatings that are applied under controlled conditions resulting in a lens that sheds water , resists dusts and grime, easy to clean. Hydroclean plus lenses provide unmatched vision on/off of the water, polarized film technology w/enhanced hydrophobic/anti-reflective coatings, providing a lens that sheds water, resists dust/grime, easy-clean & reduce reflections from sources behind you. Case Included Lenses are prescription ready (Rx-able)