Biohazard is proud of these shades, and you can tell because they stamp their name boldly on a highlighted field of silver on the arms. The frame of these men's sunglasses is made of plastic, and is durable and tough with a lightweight construction that makes them easy to wear. The arms start thick and taper to the straight earpiece. The lenses are dark and protective, with a shiny finish. Buy these great glasses in bulk for excellent savings and have enough to share with friends.