13-oz, 50/50 cotton / polyester fleece
Place one end of the tape measure under your arm and wrap across the fullest part of your chest. Round up to the nearest half inch and mark the measurement.
Measure around the natural waistline, keeping the tape comfortably loose.
Start at the centre back of the neck, measure across the shoulder to the elbow and down to the wrist. Round up to the nearest half inch.