NoIR U23 UV Shield Sunglasses - 4% Dark Grey

These filters provide excellent glare protection, with their large side shields and top lip. These filters have 100% UV protection, they are an extremely comfortable color which sharpens focus and provides natural color rendition. Filter shade number 23 - dark gray - is an extra dark filter which allows in only 4% of visible light, has 100% ultraviolet protection and provides a comfortable color which cuts glare, sharpens focus and provides a natural color rendition. It is often recommended for people with Retinitis Pigmentosa for its light sensitivity, glare control and contrast enhancement. Features: * Color: Dark Grey, Extra Dark * Transmission:: 4% * UV Protection: 100% * SideShield and brow protection * Universal size for most faces and frames Frame Dimensions & Sizing: * Inside: 152mm x 52mm * Outside: 155mm x 55mm * Temple: 145mm * Eye: 50mm Model: U23 Manufacture: NoIR Origin: USA