I am 5' 1". I fluctuate between 150-161 pounds. My bust is 42" (36 DD). My waist is 37". I have a short torso. I am in between a size medium and large (size 8-10). I purchased this sweater in a size medium. Its a prefect fit! Not too big and not too small. I don't like a baggy/loose look, unless I am dressing down/casual. If you are taller than me and have a longer torso, I would size up. In all of Egi's clothing, 90% of the time I am a size medium. Unless, Egi says to size up, due to lack of stretch etc. then I'll go with a size large. I love that Egi's sweaters are unique and NOT itchy/scratchy. Her clothes are edgy and chic. I feel like a crackhead, every morning checking my texts to see what drops are in! LOL Also, on another note, her staff is outstanding! ANY and ALL issues I have had, has ALWAYS been addressed and taken care of! Any inquiries have also been answered in a timely fashion. I feel like this company takes care of their clients. And for this reason, I will always be a faithful customer.