These are very thin pants.  Now that's okay for occasional use, but they don't seem very high quality.  I got a large, I normally wear a 12.  This said 12 - 14.  I thought they would be cut fuller in the seat so they can comfortably fit OVER whatever pants or shorts you are hiking in.  I can do it, but they really should be bigger.  The XL says they are equiv. to a size 16 and that just sounded too big.  Should have gotten it, though.