5 interchangeable lenses: the tactical military polarised glasses have a wide choice of different lenses for different conditions. The black one is polarized lens for cycling, driving and other activities, the revo multicolor lense is perfect for all weather. The yellow lens is ideal for night activities, the transparent lens is great for rainy or overcast days. The light brown lense has 7 coating, which is good for all weather.Only black one is polarized lens,please pay more attention to it...