The Guess GU1598 Gunmetal frames are a very modern take on the classic 1950's style. These gunmetal semi-rimless rectangular lenses are smart and sophisticated, while temples display a more athletic, outgoing sense of style in their thick plastic-rubber. The arms have a very funky and unusual design with a raised grey plastic-rubber details added. These prescription eyeglasses have adjustable rubber nose pads for added comfort, and the Guess name detailing the temple for a hint of added class.