I am in a crunch to get clothes for an upcoming ab operation.  I went small which is my normal size.  In pants I wear a 2, I'm 5-3 and 115.  I really hate tight waist bands of any type and wear my pants low.  I was hoping for a little room.  These are super comfy but they are HUUUUUUUUUUUUUUUGE.  Even pulling the drawstring all the way tight, they aren't tight, and I have to roll them over to stay up.  I'm going to exchange them for an XS but the only reason I'm doing that is because of the light fabric and an actual drawstring pant.  I really couldn't tell you if there's elastic in the band.  I would need another person to get in.  I'm frustrated with this as I don't have much time for the exchange.  Even though I'm small, well, a small usually fits and I wanted these to be loose, not jumbo.  I would say by normal sizing standards they may be up to two sizes off.  I expect the XS to fit like a normal medium would.  For us shorties, they are only a smidge too long. They will just drag on the bottoms which is something I'm used to so it's not too bad.