I am a D cup, and NEVER did I think that this bra would actually work. Although it felt a bit odd that I was only wearing this under my one-shouldered top, it felt like a second skin within the hour, and stayed in place all day in this Houston hot, humid weather. I even played with it a bit more towards the end of the day, taking each cup off and replacing them in different positions on my girls, giving me more lift, or more cleavage, or less. I can't believe that I haven't worn them before. I am completely in love!