Intrigued by spacer fabric in a magazine article (this bra specifically), sent me to search on Amazon. We 60-somethings often need shaping in order to look feminine, but not the brick wall that most bra cups have. My prominent rib cage has also made underwires uncomfortable for decades. Why this one works, I don't know, but it is so wonderful that I will have to buy another. (No itchiness and Ive been in it all day)