I love jumpsuits but this literally feels like pajamas. it doesn't look like pajamas but it is soft and cozy and isn't too big or too tight anywhere. i am 5'6" and 130 and i purchased the small and it fits just like the model. the button in the back at the top is a little hard to close but the whole thing comes off and on easy which is such a bonus in a jumpsuit. this is a winner! it can be worn casually or dressed up.