I got a medium, I'm 4'11 & 130lbs fits amazing. Only thing I'll say is that the buttons aren't as sturdy because it'll unbutton any movement I make which is a tad annoying when I want it buttoned lol otherwise the cosmic fur is super soft & got more than a handful of compliments! I feel so unique when I wear it. VERY WARM!!!! I wore it in 30 degree weather and kept me snuggled up. I've worn it to sleep a few times too hahaha also pockets are nice and deep, hoodie is warm, & overall, one of my greatest investments. So happy I got it. I didn't purchase it with the inside bag either.