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 - Banana Yellow16.7527
Adult Medium - Banana Yellow18.2528
Adult Large - Banana Yellow21.2529.75
Adult XL - Banana Yellow23.529.5
Adult 2XL - Banana Yellow25.530.75
Adult Medium - Banana Yellow