I'm a 34C in Victoria's Secret bras and that's the size I ordered. As a couple other reviews noted, the fit around is a bit tight, but that's what I wanted, and there are also a number of hooks, so you can make it a little tighter or a little looser. The cups fit perfectly, there is no gaping or any other issues. I ordered the nude color and then dyed it blue for a costume, and even after swirling around in hot water, the fabric remained soft and the rubber strips that hold the bra up stayed intact and did their job. I wore it for 12+ hours straight and it held up perfectly all day, no slipping.