These pictures show the WAY the measurement was arrived at, not necessarily the measurement of your size. Please consult the “Size Chart” for the exact measure of your sizes.
Pictured here is the INSEAM measurement, which is taken along the inseam topstitching, from the center crotch-point to the bottom of the hem. Please note the way the leg’s inseam has been straightened out to hew to the ruler exactly, rather than letting the leg lay naturally and having the ruler take an “approximate” measurement.