1. collar
Place the measuring tape around your neck, right where the top of your collar would usually sit. Hold one finger between your neck and the tape, leaving some space for comfort. This measurement is leading if you intend to close the top button (i.g. with tie or bowtie).
2. chest
Put your arms up in the air and measure your chest extent from about 5 centimeters below your armpits.
3. waist
Measure your abdominal extent at the widest point, which is usually at your navel. Make sure to do this in a relaxed state, so don’t hold your belly.
4. sleeve
This measurement is important when your arms are longer than average. Measure from the bone on top of your shoulder to your wrist. Please note: Michaelis shirts already have slightly longer sleeves.