I think this is the 4th style of Columbia shirt I have purchased, and the upteenth outdoor shirt I have tried on (or bought, then returned!).....and it is the most feminine so far! The side panels are a stretchy fabric  different from the rest of the shirt  and this really helps nip in the waste, but still be comfortable.

The fabric does seem a tad thicker and less silky than some of the other Columbia lines, but it is still quite nice on the skin. LOVE the little tab of fabric behind the collar you can pop up to really make that collar stand up and shield your neck from the evil sun. Zippered chest pocket honestly seems useless to me, but the zipper looks kinda cool and Im very thankful there is no Velcro! The length is perfect  it does not look frumpy untucked or sloppy with shorts.

I think it is true to size; I usually order M so I have enough room through the shoulders, and M in this was perfect.