The RX6421 eyeglasses by Ray-Ban are ideal for the person who embraces modern design but enjoys a little old school nostalgia. Full-rim square frames are made from strong, lightweight metal that won't weigh you down. Stylish shark fin temples are engraved with the Ray-Ban logo and feature rubber temple ends that are comfortable over the ear. For a retro look with modern flair, reach for these striking RX6421 glasses by Ray-Ban.