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 - Silver1827
Adult Medium - Silver19.528
Adult Large - Silver21.529.5
Adult XL - Silver2431
Adult 2XL - Silver2531
Adult Small - Silver1827
Adult Medium - Silver2028
Adult Large - Silver21.529.5
Adult XL - Silver23.531.5
Adult 2XL - Silver25.531