Place an index finger under the tape to ensure a comfortable fit, and measure around the fullest part of your neck where your shirt collar would sit.
Measure under your arms around the fullest part of your chest, keeping the tape parallel to the floor.
Measure around your body 4 inches below your natural waistline, keeping the tape parallel to the floor.
Measure around your body 9 inches below your natural wastline, keeping the tape parallel to the floor.
Measure your thigh around 2 inches below your crotch.
Standing straight, measure from your inner leg crotch point to the floor.
It is best to have someone take the measurements for you, measuring over undergarments only.