Zone3 Women's Aeroforce-X Trisuit

I am usually a size small and according to the size chart I fall somewhere between small and medium. I tried both the medium and large and both were too small. The large size at least fit on the bottom, but the arms and shoulders were SUPER tight. Even around the torso was so tight that the zipper was stretched and the neck hole felt uncomfortable. Unfortunately this suit didn't work for me at all even though the material felt amazing.