This bra, sold by Hanes Brands in the US, is no longer available since Wonderbras seem to be no longer sold in the US. The style number on the paper label is X732 while the style on the sewn in label is 7738. Molded seamless underwire cups are lightly padded. The cups are overlaid by stretch lace mesh, which also composes the wings. Straps stretch and adjust in the back, are non-stretch in the front. I don’t know why there is a label attached describing the bra as convertible, since I can see nothing about it that converts.