Ordered a size small in the light blue. I am 5'2" and weigh 115 lbs. This is a loose fitting shirt and a small fits more like a medium, but it hangs well, is comfortable, and the color is beautiful. If you have a little bit of a belly, ordering a size smaller will still conceal it, but if you have a larger one, you should go with your normal size or even a size up and it will probably still look great. This is my second one of these shirts. The first one I ordered was a medium and while it is kind of large on me, it hangs good enough that I can still wear it like I own it. :)