My usual size is 2X for pretty everything on FN, but 1X when there is a lot of stretch. I like to wear my clothes fit. The reviews say this top runs large but it's not true. It definitely runs true to size. I should've ordered a 2X instead of 3X, cause now it's way too big and won't stay in place. So take your usual size if you want it to look like the model, cause the material is also stretchy.