Polarized lenses help keep your eyes protected from the sun's glare and its harmful ultraviolet rays, and these nice aviator-style sunglasses by Biohazard for men have that and more. The frame is metal and plastic, designed to bend and flex but also strong and rigid for daily use. The arms are straight with a silver section that has the Biohazard logo between two sets of horizontal lines. The smoke lenses are large and round, set in the frame in a slight curve for comfort.