I'm in between a medium and a large and i ended up with a large because of the sleeves, which are fitted. the sleeve looks loose on the model, but i have some muscle on my bones. the v-neck is a little low and i will probably war a cami underneath, something i would have done in a medium as well. overall i like the top, i got the green. it has a nice style and will stand alone in warmer months without a jacket or sweater over it.