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 - Hunter Green1727
Adult Medium - Hunter Green1928
Adult Large - Hunter Green2128.5
Adult XL - Hunter Green2330
Adult 2XL - Hunter Green25.532
Adult 3XL - Hunter Green2731.5