The sunglasses F180 is made by TR90LX, a nylon mash (70% nylon and 30% carbon) undeformable, lightweight and flexible. The best material on the market for sports glasses thanks to its memory position. The patented quick release system for change the lenses makes it unique, in fact, the lens is assembled to their frame. This speeds up and simplifies the changing of the lenses. The adjustable nose pads ensures a perfect fit for every face. The photochromic lenses are made of impact-resistant and PC by 2.2mm thick. The peculiarity of this type of lens, the switching from clear to smoke cat.3 according to UV exposure, making it perfect for any lighting condition.