Im 55, ~125 lbs and Im a pear shape. A six was perfect for me.  Fitted but not skin tight (if your clothes are skin tight or gives you a muffin top, you're wearing the wrong size!) which is what I wanted.  I don't like my capris to be baggy.  Length, unfolded, is at upper to mid calf and thats just perfect for me.  Couldnt care less about the belt and threw it away.  Hope this helps someone pick out their size.