Spy Optic always brings smashing opticals that’s why even National Geographic has featured some of their sunglasses at their store. Spy Optic’s SCREW Sunglasses series is a new release by company. The glasses are quite sporty and stylish. The SCREW features high quality Grilamid-made frame, impact resistant and fog-free polycarbonate lens makes sure hundred-percent Ultraviolet radiation protection. Furthermore the lens are interchangeable which allows you to change your style according to your apparel. Also consider Ray Ban Folding Sunglasses