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 - Charcoal1825
Adult Medium - Charcoal19.528
Adult Large - Charcoal2230
Adult XL - Charcoal23.532
Adult 2XL - Charcoal25.532
Adult Large - Charcoal