Polarized lenses are ideal for protecting your eyes against the hazards of ultraviolet rays and eliminating glare, and these nice shades by X-Loop for men have that and more. The frame is made of metal, and the arms are plastic -- a combination that allows the shades to bend and flex but stay rigid and strong as needed. The arms are thin with a flare in the middle and the X-Loop logo proudly displayed on the side. The lenses are dark rectangles that offer your eyes maximum protection.