Neck-1” up from where your neck and shoulders meet. Total circumference around.
Chest- Total circumference around. Wrap the tape over the largest part of your chest, and then across your shoulderblades.
Waist- Usually at or just above your belly button at the smallest part of your waist.
Sleeve Length- With arm bent run the tape measure from center back neck along the shoulder, and down the arm - all the way to your wrist.