How to Measure a Shirt: Sleeve Length
To measure a dress shirt’s sleeve length, start by spreading the dress shirt out on its front. Place one end of the measuring tape at the center of the back of the collar, just below the collar band. Run the measuring tape along the yoke and down the sleeve to the end of the cuff. Pull the sleeve firmly away from the dress shirt body. Do not stretch the shirt sleeve, but be sure it is fully extended.
Do not add extra to account for shrinkage. We will do that for you.