SAMA boasts a wide variety of beautifully colored lenses that last up to 90 days. These monthly lenses are sorted into 3 fashionable styles, Natural, Ring and Twilight. Each of these styles offers an array of colors that range from bright blues and greens to sultry deep natural browns and hypnotizing grays. All of these lenses come with the option of being powered or non-powered. These lenses are affordable and are made from the best quality materials to ensure that they are comfortable and provide the best visual clarity.