The dark ring around the outer edge gives the impression of a larger, wider iris, giving you an appearance similar to that of a Dolly in a cartoon, and the sin blue color goes well with your natural eye color. Sin Blue colored contacts is so comfortable you barely noticed them in your eyes. Either prescription or non-prescription, these coloured contacts are safe, comfortable, FDA & CE certificated, and eco-friendly. Additionally, we offer free shipping on orders over $29.