Bold definition meets timeless allure with RB4439D RB4339D by Ray-Ban. Designed with full-rim square frames crafted from nylon and propionate, these black sunglasses deliver a structured, modern look with sharp angles and clean lines. The sunglasses' low bridge fit ensures comfort, while classic blue lenses enhance the sophisticated black front for a refined style that stands out. Effortless and iconic—a fresh interpretation of everyday energy.