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 - Carolina Blue1827
Adult Medium - Carolina Blue19.530
Adult Large - Carolina Blue21.530
Adult XL - Carolina Blue23.531.5
Adult 2XL - Carolina Blue2632