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 - Brown1727
Adult Small - Sky Blue1727
Adult Small - Silver1727
Adult Medium - Brown1928.50
Adult Medium - Sky Blue1928.50
Adult Medium - Silver1928.50
Adult Large - Brown20.5030
Adult Large - Sky Blue20.5030
Adult Large - Silver20.5030
Adult XL - Brown2330
Adult XL - Sky Blue2330
Adult XL - Silver2330
Adult 2XL - Brown24.5031.50
Adult 2XL - Sky Blue24.5031.50
Adult 2XL - Silver24.5031.50
Adult 3XL - Brown2633
Adult 3XL - Sky Blue2633
Adult 3XL - Silver2633