the Herringbone Cardigan. It fits tts. I am usually a size Small in J Crew sweaters so, after consulting some other JCAs and "chatting" with a Madewell specialist, I decided to go with the Small in this as well. The fit is good...not too tight, not too loose...and I am able to button it comfortably without any pulling. When unbuttoned, it fits exactly as shown on the model.
The weight of the sweater is akin to the J Crew "dream" sweaters except it seems a little more dense. I got the beach pebble color, which I was told was brown. Ummmm, unless I'm color-blind it's more like charcoal or faded black trimmed in oatmeal with brown buttons. The buttons are plastic/resin crafted to resemble leather.