"Originally launched in 1957, Ray-Ban Caravan sunglasses are a streamlined, geometric model and an alternative to the classic Aviator Sunglasses . The Ray-Ban signature logo is displayed on the nose pads and lenses. The Caravan featuresSquare Sunglasses lenses and frames, as opposed to the teardrop lens shapesunglasses seen in the Aviator. Wear Caravan RB3136 Sunglasses in a gunmetal, gold or silver metal frame and lens treatments including crystal green solid, crystal grey mirror or prescription. "