Order up! I'm 5'2" and 111 lbs and got a medium after reading all the reviews. Lucky that I did b/c mediume fits just right. Small would not have fit me. Enough room to just wear light tutleneck or long-sleeve. Won't be able to layer more b/c it will make sweatshirt feel snug. Then again, it's so warm, why would you want to layer w/ anything more than that! Thinking of getting a navy one...
This sweater is so warm. I had bought one for my son and loved the feel of his on the inside so much that I decided to buy one for myself. Just love it - so bought another one with the crew neck collar as well. Beautiful choices in colours. Only thing that I would change would be to make the outside a bit more classy so that it can be worn in more than just casual get togethers.