Model code: RB4286 6166B8 55-21nnWhy choose function over fashion when you can have both? Ultra-light metal components have been engineered for high achievers ? from the hinges to the rims, it?s all designed to work harder for you. The glare-free mirror lenses protect you from the elements while the wide variety of unique color options let you own your look without ever having to compromise. Pair your favorite color with gradient mirror or polar green lenses.