Kind of bummed.  I'm a big guy.  Ordered the XXXL.  They fit great.  Shirt was a little tight but I bought them for the leggings.  (I got plenty of shirts to keep me warm.)  The legging/underwear fit great actually a tad long and loose but well with in the range that I was looking for.  After the second wash the crotch ripped from ass to crotch.  Not tight and ripped just ripped.  Bummed.