Finally got fed up with having about 20 bras and only 2 of them bloody fit., Measured myself according too instructions and I am 39in under boob and 45in round boob. So I think this puts me at 38E but I could be wrong. Only 2 bras that really fit are both 36D by tesco and I understand I can go down a band width but both in the D cup are balconette style and I cant bloody figure out how I can go down a cup size. If I use a full cup I have loads up top but the bottom part of the cup is empty(I do scoop). Willing to buy some new ones but we are skint at the moment . Thanks for the help.