I wear between a size 4-6. Im 5'2 and 120 lbs. Ordered the small. Fits perfectly and love that it goes to the waist line. Will wear it with a cami under and leave open. Pair it up with jeans, shorts or leggings. Also so cute to wear on cool days ir nights over a spring or summer dress. Will be taking it on my next cruise for the chilly evenings. You can't go wrong with this jacket. I'd definitely say true to size. Arm fit, across the shoulders and chest are just right. Not form fitting but slightly flows which I really like.