On Par Bifocal Sunglasses - Tortoise HornOn Par proves that theres often more than meets the eye. While the soft square frames are somewhat familiar, they set the stage for a number of details that put these shades in a league of their own. The metal temples bring an upscale touch to the sides, while captivating patterns swirl throughout the soft matte frame fronts. Get up close to the Tortoise Horn and amber gradient lenses or the Charcoal Horn and smoky gradient lenses, and youll see what