I purchased this romper in both black and oatmeal. I am a size 12/14, 5 foot 7, and around 175-180 pounds. I purchased the XL and it fits great! I do also think I could fit into one size bigger because the chest area is definitely compressive, but personally I like the way this size fits. It's so comfy and the material is incredibly soft. I've been wearing Imbodhi for about three years now and they are still my favorite! Definitely check the size chart before ordering because the sizing is strange. My typical size in other clothes is a Large, so the fact that I could probably fit into a 1x here is strange. I hope Imbodhi widens their size range to make up for the lack of size representation with the larger sizes since the size chart is so different, but the quality of the clothing is great.