Elegant cat-eye sunglasses by Saint Laurent. Glossy black frames the arms are red for a sophisticated style. The hand tag is still on the glasses and it comes with a cloth case for the glasses. I don’t know anything about YSL. I’m just giving you as many photos as I can and we’ll go from there. I believe they are original authentic.the # on the arm is 23015 540 19-142 the 0 is more of a square