Lol. No, not confusing! However, I'm not really sure. :(. I am a 36b! So I honestly have no idea why it was included with my group of bras. Lol. Now, I can tell you that band wise, (the 38) does seen about right because it is a tab big around me. But cup size I have no idea. All I know is it's too big for me. I hope that helps a little! Thanks for looking. :)