Innovative Waterproof Coating: The lens adopts coating technology to imitate waterproof properties. Water drops form an angle greater than 110 degrees on the lens surface and roll off quickly, bringing excellent water and dust resistanceVersatile Wear: Made of quality material, this on sunglasses can be firmly fixed on your existing glassesAdjustable: The flip up sunglasses can be easily adjusted or flipped to 180 for easy wearing, and it provides hand held and wrist worn options through connecting buckles and elastic bandsOptimal Visual : By effectively filtering out , this polarized lens can enhance visual and color saturation for vivid outdoor viewing experienceApplication:Sunshade accessory Ideal for activities that require clear vision, such as driving or hikingSpecification:Lens Material: TACFrame Material: TRSize Chart:14.4cmx5.4cm5.67inchx2.13inchLens:6.2cm2.44inchPackage Includes:1 On SunglassesNote:Please allow slightly errors 1-2cm differences due to manual measurement.