This is an OP (one-piece dress) from ANAP. There is no yellowing or discoloration whatsoever. It's a white cotton dress, so it's very cute even if you wear long sleeves or a blouse as an inner layer. White cami dress featuring lace and pearl buttons, with a light and airy flared silhouette. - Color: White - Design: Lace decoration, with pearl buttons - Style: Cami dress, flared silhouette - Material: Lightweight, sheer fabric Thank you for looking.