Eassun Monster sunglasses adapt perfectly to any type of physiognomy. They are made in Grilamid TR90, a very light and resistant material, and are equipped with glasses brand Essilor, world leader in photochromic photochromic. These lenses provide a protection factor that fits 1 to 2 according to the conditions of sunlight (more sunlight, more protection, and vice versa). In this way, these sunglasses protect the more energetic Sun, while in State clear, allowing up to nightly application