Gargoyles Sunglasses are technological marvels! The Draft is a metal alloy frame with spring hinges, non-slip adjustable nose pads and soft rubber temple tips for complete comfort. The Rx-able Draft is shatter-resistant and is rated for ballistic defense. Gargoyles Sunglasses provide unprecedented protection against the elements. The lightweight polycarbonate lenses are scratch/impact resistant, 100% UV protective & ensure superb optical clarity.