I am a first time purchaser of NYDJ but it will not be my last.  Whatever size you are in other jeans you can go one size down.  I wear size 16 in skinny/or straight  leg jeans and a 14 in regular fit jeans.  I bought the 16 and the 14.  The 14 fits perfectly and enhances my shape! Perhaps one day NYDJ will make a pair of pants that sit a little bit below the belly button for us short-torso folks.