MEN'S TOPS SIZE GUIDE
To take your measurements:
Head: Wrap a tape measure around your head, above your eyebrows. Make sure it is parallel to the floor when your head is straight.
Chest: Wrap a tape measure around your back and bring it forward to the fullest part of your chest. Make sure it's straight and parallel to the floor.
Raise your head, tight on the tape and breathe normally.
Waist: Wrap a tape measure around the narrowest part of your waist, above your belly button.
Raise your head, tighten the tape and breathe normally.
Hand: Hold a tape measure at the bend of the thumb. Wrap around your palm.