Based on the American vintage frames made in the 1920s, which were inherited from the original design team, the frames were made into what EYEVAN considers to be an authentic design today. This model is made without compromising on details, such as the characteristic rounded finish of the end piece and temple joints, and the structure of the bridge, which is stepped by cutting 6mm of acetate instead of using a curved mold, and the same style as in those days is reproduced by hand by skilled craftsman.