Great auction! Hope this helps with measurements :)
Find the waist measurement by stretching the measuring tape horizontally across the waistband while the jeans are laying flat. After measuring, multiply the number by two to determine the full waist circumference.
Measure the inseam by starting at the center crotch seam, then measuring all the way down one leg to the hem. Be sure that the tape measure lays flat against the jeans to get an accurate measurement.