How To Measure
Neck
Use a measuring tape to find the circumference of your neck. Allow a one or two-finger margin, then round to the nearest half-inch for your size.
Chest
To obtain the chest measurement, begin an inch below the armhole and measure around the circumference of the body covering the broadest part of the chest.
Waistline
Locate your waistline measurement by bringing the measuring tape around the narrowest part of your torso.