It fits very well, I ordered a small, I don't have a big bust. The straps didn't slip down, the overall fit is snug, but I like snug. If I went to a medium, it would've been too loose for me. I love the look and feel of it. Comfy and the padding in the bra covers. Also check it after you dry it. The padding seemed damp, so I put it in the dryer alittle longer. I can't wait to buy it in the other colors.