Men's Measuring Guide
Height: For best results, stand barefoot next to a doorframe, and then measure from the top of the head to the bottom of your feet. Even better, get a friend or family member to do it for you.
Chest: Place the tape under the arms and measure around the fullest part of the chest and over the shoulder blades at the back.
Waist: Measure around your natural waistline, keeping the tape slightly loose.
Head (for hats): Measure the circumference of your head across the forehead and to the point of the back of your head where you like the hat to sit at.