XL329MIXSemi rimless sports sunglasses for men don't have to be boring or staid. Check out these sweet shades by X Loop that are for active lifestyles and people who want to get noticed. The frame is made of plastic, shaped in a cool way that looks jointed, yet fluid. The arms come off the temples and sweep back to the rubberized earpieces. The lenses are dark with ultraviolet ray blockers in the finish and a padded nose piece for better grip.