Shop Rayban Caravan. Ray-Ban ® Caravan ® sunglasses originally launched in 1957 and are a streamlined, geometric model in metal and an alternative to the classic Aviator™. The Ray-Ban ® signature logo is displayed on the nose pads and lenses of the Caravan ® sunglasses which feature squared lenses and frame shape. As opposed to the teardrop lens shape sunglasses seen in the original Aviator, the Ray-Ban ® Caravan ® carries the tradition and iconic legacy of Ray-Ban ® with its own personal sense of style. The Caravan ® sunglasses are prescription lens friendly.