I am 5.5 170lbs. Size Large fit perfect but it is a relaxed fit so it is loose. This is a nice, comfy top. The material is great quality, thicker than expected and is a little soft but not super plush. I will be able to wear this top without an undershirt. Please note this top does not taper above the waist so it has a slight boxy look but its not that bad and fits the relaxed look. The top is pretty heavy and could be called a sweater. Top will not cover the bum. Im happy with this purchase.