I tried on this blazer at lunch today. It runs small! I tried both small and medium in the regular size. They were really not very different on me. Both were tight across the middle (I couldn't button them comfortably) and the shoulders/upper arms felt tight on me as well. Also, the peplum in the back stuck out at a strange angle on me, probably because I have no waist so that part didn't sit right, even unbuttoned - i looked a bit like a duck.

On the plus side, the color is very nice and looked great with my hair. The ruching is nice and allows for comfy sleeve scrunching.

I do think this could work for an IT with more of a defined waistline. I also think it will work nicely for a slender rectangle or any hourglass as long as not too busty. It's funny because the previous Gibson knit blazer worked really well for me.

Worth a try because it's very pretty, but those were MY fit issues!