I got a size xxsp which is perfect although i usually wear a xs petite or xs. i'm 5'2", currently 33-25-37, 30d/32c bra, with narrow shoulders and torso, a bit long-waisted. the ribbed darby sweater hugs every single curve without being tight. low cut, but not as low as on the model; very flattering neckline. sleeves end about an inch above my elbows and can be folded up.
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well made, very lightweight knit of 57% cotton, 43% polyester. the ribbing detail is very well thought out. there is bias