Ray-ban Leonard RB2193 901/31. Frame color: Black; Lens color: G-15 Green; Frame material: Acetate. The Sunglasses Ray-Ban RB2193 Leonard, with Frame Squared in acetate, they are the perfect accessory for those who love a decisive style. The black color and green G15 lenses give a modern look. Recommended for round and oval faces, since they add definition and structure to the features. Ideal for men and women.