Take a soft tape measure to determine the following:
From the middle of the side shoulder down through the crotch and around the torso back to the same shoulder.
With arms raised, measure around the fullest part of the chest.
Measure around body at waistline.
Waist Pant Inseam:
Inside the leg from the crotch to the desired pant length.
Measure around the fullest part of the hips.