I'm 5'7 a34 ddd a size 10(I normally wear an 8 in Lulu energy bra and a medium in athleta)
I ordered a medium and a large the medium was more compressive like I wanted but way too tiny The straps were way too short The large was closer but again the straps were too short it showed way too much boob and there was no support in the band The extra fabric part that makes it a long line was just that fabric no elastic inside to reinforce the whole point of a long line is that it has extra elastic underneath of it to support. The fabric kept rolling up whenever I would bend or take a deep breath
Also if I jumped up and down my girls were moving all over the place.
I think if you were 5'5 or had well-defined abs had a torso that was more straight than curved maybe in a b or c cup this would be a good choice. Or if you were doing something low impact like yoga or bar class.
The refund process was super easy I got a nice email ask me if I needed some help with sizing I will go back to the drawing board and try different type of bp bra maybe in a large and an extra large this time