I tried it on last weekend, I think it runs about a half size big at most, but the arms are shorter than most J.Crew stuff (though probably about normal length for other retailers). The hood is pretty big, but I kind of like that. I was a little disappointed in the feel of the fabric, it was kind of stiff which I wasn't expecting. I also didn't love the bright shiny silver snaps and zipper, which cheapened it a bit.
That being said, it is really cute and a great length, but I'm going to try and wait it out for sale price. I think it'd be great with shorts on a rainy day (it's not waterproof either, if you were wondering).
jordanjordan, thank you for this...I was just thinking about this coat myself. Now I think I will probably have to pass on it because I want it to be at least water-resistant if not waterproof.
Does the hood stay on?
I really don't understand why they can't make it waterproof. Just seems kind of lame to call it a trench and even put a hood on it if it isn't.