Look fly in these sunglasses by Spy. Start at the beginning of style with Alpha. Its streamlined design is for ultimate performance, as is its lightweight feel. Built from high quality Grilamid™, the black, semi-rimless frame is virtually unbreakable. Alpha has interchangeable lenses and Spy's signature Scoop® Venting System which combats lens fogging by promoting airflow between the lens and your face. Lenses are grey, mirrored and 100% UV protected.