Shoulder:

Measure between the two shoulder seams, straight across the back

Chest:

Measure across the chest from underarm to underarm and double the measurement

Waist:

Measure the width of the garment, 20cm down from the chest and double the measurement

Sleeve:

Measure the length from the top of the sleeve, where it meets the shoulder seam down to the bottom of the cuff

Length:

Measure the centre back of the garment, from the bottom of the collar straight down to the hem