Polarized lenses are made specifically to protect your eyes from harmful ultraviolet rays and to eliminate the sun's glare off flat surfaces, so they are valuable to have on your shades. These sunglasses by X-Loop are for men who are active and play sports, and they feature a wraparound style that hugs your head and face for a better fit. The frame is made of strong plastic and designed to hold up to rough treatment. The arms are straight with rubberized sleeves over the ear pieces that add grip.