Width is measured across the chest below the sleeves from seam to seam. Height is measured from the bottom of the shirt to the highest point on the shoulder (where the seam meets the neck).

Please note that each product has its own specific sizing chart.
SizeWidth (inches)Height (inches)
Adult Small - Charcoal1727
Adult Medium - Charcoal1929
Adult Large - Charcoal2130
Adult XL - Charcoal2330
Adult 2XL - Charcoal2532
Adult 3XL - Charcoal2732