The RN number on the label indicates that this bra was made by Bestform. I don’t know the age, but judging from the fine details and features I conclude that it is an older vintage style. The unlined underwire cups are seamless except for a lace inset; the fabric is a non-stretch stripy material. Along the bottom edge on the inside there is a band of light fiberfill padding to add a little extra support. The stretch straps adjust in front. A very pretty and elegant bra with some nice detail work.