I am a 44DDD, i did buy a 46 DD and this bra fits perfect! I haven't been able to run on a treadmil in years due to my large size and with this bra I can. It is a lil scratchy with the first wear but does get softer as you wash it. This is by far the best sports bra I have ever had. It does not give you the 'uni' boob look! I love it and will be buying more!