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 Blue17.7527
Adult Medium - Carolina Blue2027.5
Adult Large - Carolina Blue2129
Adult XL - Carolina Blue2330.5