Im 5 foot 3 inches 113lbs and I ordered a small. The dress is made of a good quality fabric and is well made with perfectly positioned darting. My dress included a belt which I added a notch to fit my waist. I wore this beauty to a wedding but will also wear it to work. I was apprehensive about the length but after wearing it I think the below the knee length adds to its classy look. Its a winner!