This is really nice and super comfortable strapless bra option. I got a size small and I’m 32D - 32DD I think you should go one size down depending on your body type depending how tight you want it be. I’m a Small in clothes so I got a small in this and it fits very comfortably. I haven’t worn it all day or in an outfit out yet the only thing that concerns me is it stretching out in a couple washes it’s all elastic. Also I wish it was a little more supportive. Perhaps taking the pads out and putting a strapless bra under the bandue might help lift.

The bandeaus are great for wearing under sheer tops. The bandeaus have light padding and can be used for lounging around the house. For reference I am a 36C and I ordered a medium.