Overall I like the loose fit of this jersey as opposed to the usual fit of bike jerseys, and upon initial impressions it seemed to be what I've come to expect from TNF. I would say it runs true to size considering it's a relaxed fit.
I first ordered the blue one and I liked the fit of it so much I went back and ordered it in the grey color as well. But then after wearing the blue one a couple times I've discovered that it snags VERY easily (and I don't abuse my gear...). Seems to just be the nature of the material, but at this point I'm considering returning the grey one given the durability factor which is unfortunate as otherwise I really like this jersey.