Everyone is jealous of my jacket! It's stylish and touts large pockets. I enjoy that it's an over-the-head anorak vs. a traditional zip front, it's unique, keeps my neck warmer, and i won't keep zipping my hair into the jacket. I am 5'5", 125 lbs and i ordered a medium that fits well with a bulky sweatshirt underneath. I have slightly broader shoulders (think swimmer) and it was still very comfortable. I plan to only wear a long sleeve under this jacket for some extra wiggle room. I appreciate the thumb holes in the sleeves and the extra buttons that came with. I did receive my jacket with a cut in the fabric inside the sleeve, but thankfully I'm an adult who knows how to use a sewing needle and thread.This jacket is BEAUTIFUL!!! Fits perfectly and has nice insulation -got delivered a day earlier than expected.I replaced my traditional ski jacket with this boarding pull-over & LOVED it on the slopes. I typically wear a medium, but ordered up due to some of the reviews. I was able to wear 2 thin layers comfortably.Overall, I was very pleased!