For me this runs extremely small in the bust and shoulders. Im 58, 140 lbs, 36-25-39 32G, typically a small or medium in stretchy tops and medium or size 6-8 in button downs and dresses, and I ordered the Asian xl us 8, the largest size they have. The buttons across the chest pull a lot, and the shoulder seam doesnt even come close to reaching my shoulders in the right place, but its still wearable. Since the return costs over half the price of the top itself, Im keeping it and Ill probably just wear a cami underneath with the chest buttons undone for my restaurant serving job (the original reason I purchased this anyway), but if you have a similar build to me with broad shoulders and a larger chest, Id save my money because even the largest size won't fit you well.