X-Loop knows how to help you protect your eyes and keep you looking good at the same time, and these nice shades for men will do just that. The lenses have a polarized finish that blocks out harmful ultraviolet rays, eliminates glare and also gives you privacy and an air of mystery. The frame is made of metal, lightweight, flexible and durable. The arms come right off the temples and are thin and straight. The X-Loop logo can be seen on the front in between the two lenses.