Classic Boston frame model with a photochromic lens
The PHOTOCHROMIC collection uses photochromic lens that change the color of the lens in response to ultraviolet light.
In clear weather, it only takes 2-3 minutes to change from clear lenses to sunglasses. It can be used 24 hours, despite being indoors or outdoors, regardless of any lifestyle.
Such versatile photochromic lens is used in our classic and popular model DUSTER.