I normally wear a small in everything Fabletics, but in long sleeve I have been sticking with Medium. I am 5'11 and have long arms... so I find the medium was a good choice for me in this sweater. It's a looser fit, fabric is very soft and comfortable. Being tall as well, the medium fit well for the torso length, as it's not exactly a long sweater. Overall, I like this sweater. Love the colour too!
Amanda recommended this style