Way too small I am a 3x usually and at times that is even big.  I am 5'8"  and I wear a 42 DD bra.  This sweater didn't make it anywhere near my breast area when I put it on, and when I pulled a little to see if could stretch the seam ripped a little on one shoulder.  I will end up throwing this away sadly.  I recommend if you by this and your bra is over a 40 D to pick 5X Plus for a possible proper fit.