Von Zipper Banshee Sunglasses - Put on the Von Zipper Banshee Sunglasses and let out a maniacal screamthese puppies are that sweet. The Banshees feature Von Zipper's grimalid nylon frame, which was hand-crafted in Italy by folks who know how to make high quality shades. This frame is highly durable, flexible, and has a high memory to ensure a consistent fit that won't stretch over time. The Banshee Sunglasses' polycarbonate lenses are impact-resistant and give you a distortion free view of your world.