Alright, so I'm usually not a fan of vanity sizing. It makes me crazy that I can be a vastly different size at various stores.
However. I ordered these comfy, cute side tie linen shorts from J.Crew. In a medium. My usual shorts size. They were HUGE. I took them back today and tried on the small for shits and giggles. TOO BIG.
So, I ended up buying them in an EXTRA SMALL. I am 5'6 and not a small boned lady. I am by no means an XS. HOWEVER I AM IN THESE SHORTS. And, they are oh so very comfy. You're welcome.