If you don't know
your measurements, they're easy to determine with
a flexible tape measure. The best way to accurately
take measurements of your body is to have someone
else take the measurements for you.
Tape measure should be up under arms and straight
across the shoulder blades around the fullest part
of the chest.
Tape measure should be straight around your natural
waistline. Keep the tape comfortably loose.
Tape measure should be around the
fullest part of you body between your waist and
the top of your legs.