Polarized triacetate lenses are hard coated for scratch resistance, eliminate glare and reduce eye fatigue, a must on or off the water. Light weight and durable construction with built in nose pads provide comfort that lasts all day long. Polarized Triacetate Lenses are Impact and Scratch Resistant, Lightweight and Durable. AcuTint Lens Coloring System Adds Color Contrast Without Distorting Natural Colors, Allowing You To See More Clearly. 100% Protection From Harmful UVA and UVB Rays.