First you find your height.
For example if you are 158 cm tall, please look at the yellow color code which is named
Second find your figure.
For example if you have a small waist/hip difference, please look for figure type ATHENS also named
Third find your waist.
For example if you normally wear waist size 42, please look for a size
For example, your full size code is
No more waist gaping in the back of the pants.
No more excessive fabric around your thighs.
No more length alterations.