I am in love with this shirt! It's simple, but so comfortable and flattering. The material is so soft it almost feels like pajamas, but is totally appropriate for me to wear to the office. I wore this yesterday on an 85 F degree day with the sleeves rolled up 3/4's and I was perfectly comfortable. Admittedly, it's not like I took a mile walk outside or anything, but going to and from places to my car, it was cool and breezy.
I am 5'4\\\", 145 lbs and the medium fits me perfectly.
Definitely recommend as a stylish, comfortable and versatile addition to your wardrobe.