Legendary design meets innovation in the RB4179 model. The full rim frame glasses belong to the Liteforce Tech generation of Ray-Ban. These glasses are made of a new biomaterial based on a semi-crystalline thermoplastic. This material is also used in aerospace, automotive and medical applications. Lightness, durability and high comfort are unique features of a plastic frame. The glossy black frame has a rectangular shape with a curved top line. The super-light injection molded structure ensures that the same wall thickness can be achieved as with a metal frame. Equipped with a pilot green tint, the model also ensures that the eyes are protected 100% from UV rays.