The Ray-Ban RB3684 is breaking the boundaries of style, tech, and functionality. The metal frame is durable while the injected temples give a comfortable fit. The lenses are glass for superior optics and feature a narrow rectangular shape for a sleek look. Need them in prescription? Embrace the Ray-Ban visual experience with Ray-Ban Authentic Lenses that feature the signature logo on the right lens and the RB initials on the left.