Fitovers Eyewear, are the world's finest sunglasses specifically designed to be worn over prescription eyewear. The Yamba Nagari style has been designed to exclude side lenses to provide a more fashionable sunglass look. This Yamba/Nagari style offers multiple frame and lens colors. All Yamba/Nagari models provide maximum UV protection while blocking 99.9-Percent of glare. In addition all lenes are polarized and undego mulitiple manufacturing processes and treatment to ensure the highest and long lasting durability. The impact resistent lenses meet ANSI-Z80.3 safety standards. Fits over wide frames with small lenses not exceding: 133mm x 39mm or 5 1/4" x 1 1/2". Please see the Fitovers size guide for all styles and fits.