This underwire set features adjustable shoulder straps as well as a tie in the back for maximum adjustability. The set is double lined with buttery soft fabric made to LAST. You can also mix & match different styles in this same color: Christina Top Christina Bottoms Lilly Top Lilly Bottoms Julia Top Allie Bottoms The model is wearing a size Medium top and that is the same size she wears in all the other sets, so sizes are definitely comparable!