St. John collection by Marie Gray button-down cardigan jacket size 2

Beautiful St. John collection by Marie Gray button-down cardigan or jacket. This is a nice weight kind of lighter to medium weight and great for this time of year. Lovely purple and green colors lie on a gorgeous black background complemented with St. John Gold signature buttons. very unique. I was not sure whether to call this a cardigan or a little jacket. But I put it under cardigan. There is no fabric tag other than the care tag. I assume this is a lightweight wool. Made in USA You will get a ton of compliments on this beautiful cardigan/jacket. Size 2 bust measures 18 inches across 21 inches long sleeve length 22 1/2 inches In my opinion this could fit to a size 4. I am a six and I've worn it although it was a little snug for me but not too bad