These Oxigen metal-frame gradient-lens men's fashion glasses are your run-of-the-mill aviator glasses. Although older style aviators have blocky frames and lenses that don't add anything to the equation, these sunglasses are constructed similar to the sleeker sunglasses available today. You probably thought that it was impossible to find aviators with purple lenses. This isn't the case when you go for sunglasses from Oxigen. They make high-quality shades in a number of different varieties, which are beneficial for a wide assortment of customers. We all want to go with a manufacturer that stocks its product lines with the best possible shades.