The "junior" size chart for this lab coat would have you believing that a junior 2X is only a 14-16.  NOT SO.

I decided to take a chance and order the 2x even though i'm an 18-20.  IT FIT PERFECTLY.  I'm only 5'2", 200lb, 48-40-50, and it looks great, if slightly long in the waist - i'm short, so most things are, and i don't consider this a flaw.

There is still plenty of room in the bust (i wear a 36H bra) and waist, but i would say that hip size 50-52" is about all this coat can handle.  The color is a great slightly lavender-toned grey, and the pockets are deep and seem sturdy.  I bought this for a lab class, but it's so cute that i might consider wearing it as a springtime raincoat.

Edit: Since I wrote this review, more accurate sizing information has been included with the item photos. Hooray!