I bought a set with a top in 2XL and bottoms 2XL as well.  The top fits just fine and because Wonderwinks runs a little small, I figured I'd give the bottoms a try in 2XL too.  The waistline is a little lower that I'd like and the waist is more drawstring than elastic.  I've decided to keep these pants because I worry that an XL would be just a tad too small but it's a weird fit.  These probably won't be my first pick but maybe I'll wear them on dirty laundry day.