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 Green17.527
Adult Medium - Hunter Green2028
Adult Large - Hunter Green20.530
Adult XL - Hunter Green2331
Adult 2XL - Hunter Green24.531.5
Adult Medium - Hunter Green
Adult Large - Hunter Green