B - Waist

Measure around the natural waistline, with the tape measure flat against your body and snug but not too tight.

C - Hip

Measure over the fullest part of the hips.

D - Inseam

Measure from the bottom of your crotch to the bottom of your ankle in your inner leg. This is your total inseam, compare the given inseam to your total inseam to see where the pants will finish.